lisa watches the vehicles that passes buy in front of he apartment building.she has counted 15 vans and 30 cars. what is the approximate probability that the next vehicle lisa sees is a van?
A) 25%
B) 0.5
C)1/3
D3/2

Answers

Answer 1
The correct for sure answer is 0.5

Related Questions

How can you use a table to solve an inequality

Answers

Answer:

Step-by-step explanation:

Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.

But these things will change direction of the inequality: ...

Don't multiply or divide by a variable (unless you know it is always positive or always negative)

Identify the error below. Then, solve the equation correctly.

Answers

Answer:

Error: +3x should be -3x

x should equal 3

Step-by-step explanation:

In this problem, you have to pay attention how values are transferred from one side to the other. This includes paying attention t the signs.

In 3x + 4 = 8x - 11, you want to try an keep all the values positive

      3x   +   4   =   8x  -   11

    - 3x                - 3x

                  4   =   5x  -   11

                 +11               +11      <--This part of the equation was correct.

                  15  =  5x

                  /5       /5   <--This part of the equation should result in dividing by 5

                  3   =  x

Hope this helps!

David drove 634 miles on 19.8 gallons of gas.

What was his gas mileage, rounded to the nearest mpg?

A) 24 mpg
B) 27 mpg
C) 32 mpg

Answers

David gas mileage is 24 mpg

Answer:

C) 32 mpg

This is because to get his miles per gallon,

We divide 634 miles by 19.8 miles to give us 32.0202020....... rounded to 32 mpg

A car traveled 360 miles in 4 hours. If its speed were to be 15 mph slower, how long would it take to travel the same distance?

Answers

Answer:

4.8 hours

Step-by-step explanation:

First, divide the distance by time to get velocity.

S = D/T

S = 360/4

S = 90 mph

Then, subtract 15 from 90 to get the new speed.

90 - 15 = 75

Lastly divide the distance by the new speed to get time.

T = D/S

T = 360/75

T = 4.8

Therefore, it would take the car 4.8 hours to travel 360 miles at 75 miles per hour.

If a car travels at 40km/hr for 4 hours, how much distance has it covered?

Answers

If a car travels at 40 km/hr for four hours, it will have covered 160 km. A line or line segment's length between two points along the line or line segment

How to find the distance?To calculate distance, use the formula d = st, or distance equals speed times time. Both rate and speed represent some distance per unit time, such as miles per hour or kilometers per hour. The length of the line segment connecting two points in a plane is defined as distance between two points. The formula for calculating the distance between two points is typically given as d = √((x2 – x1)² + (y2 – y1)²). This formula is used to calculate the distance between two points on a coordinate plane or an x-y plane.

Speed equals x distance over time, so to find distance, multiply the speed by the time.

For example, 40 km per hour times 4 hours equals 160 km after the 4 hour time period.

Then,

To put it another way,

40 × 4 = 160.

Hence, If a car travels at 40 km/hr for four hours, it will have covered 160 km.

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A bag has 11 red marbles and 4 yellow marbles. Half of the yellow marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a yellow, plastic marble? Write your answer as a fraction in simplest form.

Answers

Answer:

Step-by-step explanation:

total marbles=11+4=15

plastic yellow marbles=4/2=2

P=(plastic marbles)/(total marbles)=2/15

Answer:

2/15

Step-by-step explanation:

11+4 = 15 marbles

Half of the yellow marbles are made of plastic = 2 plastic yellow marbles

P(yellow plastic marbles) = number of yellow plastic marbles / total

                                          =2/15

Find the surface area of the composite shape.
A: 2658.2m²
B: 257.97m²
C: 2501.2m²
D: 2579.7m²

Answers

Answer:

c

Step-by-step explanation:

[tex]25\pi + (8*10\pi)+[(35*12)-25\pi]+(35*12)+ 2(15*12)+2(35*15)=\\25\pi +80\pi + (420-25\pi) + 420 + 360 + 1050=\\105\pi-25\pi + 840 +1410=\\80\pi+2250=\\2501.32741229[/tex]

Mr. Tram was planning his trip from Dallas, TX to Detroit, MI. He knows that the total distance he needs to cover is 1620 km. He usually drives at a speed of 60 km per hour. If he is willing to drive up to 8 hours per day, how many days will this trip take?

Answers

5.8 days is the answer

The trip will take 3 days and 3 hours to complete.

What is division?

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

Mr. Tram was planning his trip from Dallas, TX to Detroit, MI.

He knows that the total distance he needs to cover is 1620 km. He usually drives at a speed of 60 km per hour.

That means, the total time,

= 1620/60

= 27 hours.

He is willing to drive up to 8 hours per day.

The trip will take 27/8 = 3 days and 3 hours.

Therefore, the trip will take 27/8 = 3 days and 3 hours.

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School band sold 30 raffle tickets each ticket is labeled with a number 1 to 31 winning ticket will be drawn what is the probability that the number of the winning ticket will be of four or the number 19 enter your answer as a fraction in the simplest form in the Box

Answers

Answer:

0.27

Step-by-step explanation:

To solve this problem, we will use Set Theory Approach to Probability.

Let U = the Sample Space which consists of all possible tests.

Of course U = {1,2,3 .... ,30}

So, no elements in that.

U = n = 30

Let Q = the event bearing a multiple of 4 No winning ticket, and,

R = the case that has the No. 19 winning ticket

Q  = { 4,  8, 12 , 16 , 20, 24 , 28} ,  and

R  = {19} , so that

Q ∩ R  = ϕ

P(Q ∩R ) = 0

As, n(Q) = 7 , n(R) = 1  , we have,

P (Q) = [tex]\frac{n (A)}{n(U)}[/tex] = [tex]\frac{7}{30}[/tex],  and P (R) = [tex]\frac{1}{30\\}[/tex]

P (Q∪R) = P(Q ) + P(R) − P(A∩B) = [tex]\frac{7}{30}[/tex] +  [tex]\frac{1}{30\\}[/tex] − 0 = [tex]\frac{8\\}{30\\}[/tex]

≅ 0.27 .

Monica earned twice as much as Samuel mowing lawn Monica earned $56. Write an equation to find,s, the amount of money Samuel earned ?

Answers

Answer:

see below

Step-by-step explanation:

Monica earned twice as much as Samuel

m = 2*s

Divide each side by 2

1/2 m = 1/2 ( 2s)

1/2 m = s

If monica earned 56

1/2 (56) = s

28 =s

Look at picture above. I need help to understand it. I’m not sure how to do it. And I can’t continue until I get this answer. Thank you

Answers

Answer:

1. Negative values of b would mean that y can fluctuate between a positive and negative answer depending on what is used for x. In simpler terms, if b < 0, y can be both less than and greater than 0. If b > 0, y can only be greater than 0. This means that only functions where b > 0 can be defined. You would not want to use negative values of b because the answer will not always be a natural number.

2. You cannot consider y = 1^x or y = 0^x to be exponential functions because, while they do utilize an exponent, they do not create exponential growth. 1 multiplied by itself, no matter how many times, will always result in 1. Similarly, 0 multiplied by itself will always result in 0. Therefore, no exponential growth is occurring in either of those equations. (I think this answer is more up to interpretation. I'm sure an argument can be made for those two equations to be considered exponential functions because they have exponents in them. The important thing to recognize here is that no growth occurs with either of them. Therefore, they are different from other "exponential functions").

Answer:

1. If you have a negative base and you try to take the square root of it you get an imaginary number.

2. To get the second point, raising 1 to x will always get you 1 and raising 0 to x will always get you 0.

Step-by-step explanation:

For example if you have the square root of -64, you get +8i and -8i since you're taking the square root. This means that there are no real roots. They're imaginary.

y = 1^x. if we chose the values: 1, 2, 3, 4 to be our x we will always end up with 1 as our answer. If you graph this, you will see a straight horizontal line at y = 1.

This is why it's not an exponential function. It doesn't behave the same way other exponential functions do. You can have a much better understanding if you use a graphing calculator to actually how it looks (try desmos online if you don't have a gc).

Now y = 0^x will also always result in an answer of 0. Take x as 1, 2, 3, 4. 0*0 = 0. 0 * 0 * 0 = 0. I think you get the point. Exponential functions show exponential growth while y = 1^x and y = 0^x are straight horizontal lines, not exponential functions.

A school wants to have a metal gate placed around it. However they only want to cover three sides of the school and they only have 2000 feet of gate. What are the dimensions of the school if the area is 240,000 square feet?

Answers

Answer:

Width = 139.445 ft and Length = 1721.11 ft or

Width = 860.555 ft and Length = 278.89 ft

Step-by-step explanation:

If the school has a rectangular shape, we have that its perimeter and area are:

Perimeter = 2*Length + 2*Width

Area = Length * Width

If we just want to cover 3 sides of the school, we can affirm that:

2000 = Length + 2*Width (eq1)

And the area is 240,000 ft2, so:

240000 = Length * Width (eq2)

From (eq1), we have that:

Length = 2000 - 2*Width

Using this value in (eq2), we have:

240000 = (2000 - 2*Width) * Width

240000 = 2000*Width - 2*Width^2

Width^2 - 1000*Width + 120000 = 0

Using Bhaskara's formula, we have:

Delta = 1000^2 - 120000*4 = 520000

sqrt(Delta) = 721.11

Width1 = (1000 + 721.11)/2 = 860.555 ft

Width2 = (1000 - 721.11)/2 = 139.445 ft

If we use Width = 139.445 ft, we will find Length = 1721.11 ft

If we use Width = 860.555 ft, we will find Length = 278.89 ft

Both pairs of dimensions are valid answers, as they would use 2000 feet of gate and the area of the school would be 240,000 ft2

what is the y-intercept of the quadratic function f(x) = (x-6)(x-2)

Answers

Answer:

Its letter B.

Step-by-step explanation:

on edge 2021

The y-intercept of the quadratic function f(x) = (x-6)(x-2) is (0,12).

Given,

f(x) = (x-6)(x-2)

We need to find the y-intercept of this given function f(x).

What is the y-intercept?

The point at the y-axis where the function passes through is called the y-intercept.

We take x = 0 for finding y-intercept.

We have,

f(x) = (x-6)(x-2)

Let f(x) = y.

y = (x-6)(x-2)

Put x = 0 in y.

y = (0-6)(0-2)

y = -6 x -2 = 12.

The y-intercept is at 12 on the y-axis and we represent it as (0, 12).

Thus the y-intercept is (0,12).

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Use the graphing calculator to graph each function
and find the matching graph.
Cube Root
f(x) = x
DONE
Exponential
fx)= 2²
DONE
Logarithmic
f(x) = logx

Answers

Cute Root: C

Exponential: D

Logarithmic: A

A function assigns the value of each element of one set to the other specific element of another set. The options can be matched with the function as C, D, and A, respectively.

What is a Function?

A function assigns the value of each element of one set to the other specific element of another set.

The function of different functions is mentioned below.

f(x) =∛x → Option C → Red Linef(x) = 2ˣ → Option D → Green Linef(x) = log(x) → Option A → Blue Line

Hence, the options can be matched with the function as C, D, and A, respectively.

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Enter the equation of the circle with the given center and radius.
Center:(-4, 2); radius: 2
The equation is

Answers

Answer:

The answer is:

[tex](x+4)^2+(y-2)^2 = 4[/tex]

Step-by-step explanation:

The equation of a circle:

[tex](x-h)^2+(y-k)^2=r^2[/tex]

Since, you already have the center and the radius, use them for the equation of a circle and it will be written as:

[tex](x+4)^2+(y-2)^2 = 2^2[/tex]

When putting the equation of a circle, the radius needs to be simplified by the exponent [tex]2[/tex]:

[tex](x+4)^2+(y-2)^2 = 4[/tex]

So, you have found the equation of circle.

Math question need help please
I’ll mark you as brainliest

Answers

Answer:

Original: $733 million

Sequel: $860 million

Step-by-step explanation:

Let's say the original movie grossed x dollars. Since the sequel grossed 127 million more than that, we can write the expression x + 127 to represent the sequel.

Their total is 1593 million, so let's add them up:

x + (x + 127) = 1593

2x + 127 = 1593

2x = 1466

x = 1466/2 = 733

To find the sequel gross amount, add 127 to 733:

127 + 733 = 860

So, the original movie grossed $733 million, while the sequel grossed $860 million.

Find x in this 45°-45°-90° triangle.

x=

Answers

Answer:

2.4

Step-by-step explanation:

Because it should be 2x your base

Answer:

1.2sqrt2 is ur answer

Step-by-step explanation:

erry solved this equation: 3 ( x −
1
4
) =
13
6

1. 3x −
3
4
=
13
6

2. 3x −
3
4
+
3
4
=
13
6
+
3
4

3. 3x =
26
12
+
9
12

4. 3x =
35
12

5. (
3
1
)
3
1
x =
35
12
(
3
1
)

6. x =
105
12

In which step did Jerry make an error?
In step 2, he should have subtracted Three-fourths from both sides.
In step 3, he should have found an LCD of 10.
In step 4, he should have subtracted 9 from 26.
In step 5, he should have multiplied both sides by One-third.

Answers

Answer:

1.3x-34=136

3x=136+34

3x=170

divide both side by 3

3x/3=170/3

x=56.7 answer

2.3x-34+34=136+34

3x+0=136+34

3x+0=170

3x=170-0

3x=170

divide both side by 3

3x/3=170/3

x=56.7 answer

3.3x=2612+912

3x=3524

divide both side by 3

3x/3=3524/3

x=1174.7 answer

4.3x=3512

divide both side by 3

3x/3=3512/3

x=1170.7 answer

5.(31)31x=3512(31)

31*31x=3512*31

961x=108872

divide both side by 961

961x/961=108872/961

x=113.2903 answer

6.x=10512

the question is still the answer.

Answer:

D) In step 5, he should have multiplied both sides by 1/3

Step-by-step explanation:

Can someone please help me???

Answers

Answer:

B.)    2 / 15

Step-by-step explanation:

: )

A parallelogram shaped tapestry has a base of 6 feet and a height of 5 feet. Explain how you would find the area of the tapestry. What is the area?

Answers

Answer:

30

Step-by-step explanation:

the area of a parallelogram is its base x height. in this case it will be 6 * 5 = 30

PLEASE MARK AS BRAINLIEST

The area of the parallelogram shaped tapestry is 30 feet².

What is a parallelogram?

A parallelogram is a geometric object with sides that are parallel to one another in two dimensions. It is a form of polygon with four sides, in which each parallel pair of sides have the same length.

As per the given data:

A tapestry is having a shape of a parallelogram, and we have to find out the area of the parallelogram using the dimensions given.

The base of the parallelogram tapestry (b) = 6 feet

The height of the parallelogram tapestry (h) = 5 feet

The area of a parallelogram is given by the formula:

Area = base × height

By putting the given values in the question:

Area of the tapestry = 6 × 5 feet²

= 30 feet²

Hence, the area of the parallelogram shaped tapestry is 30 feet².

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Audrina brought $35.25 to the art supply store. She bought a brush, a sketchbook, and a paint set. The brush was 1 6 as much as the sketchbook, and the sketchbook cost 3 4 the cost of the paint set. Audrina had $1.50 leftover after buying these items. What was the cost of each item?

Answers

Answer:

The brush cost $5.44, the sketchbook cost 10.88 and the paint set cost 14.50, approximately.

Step-by-step explanation:

Givens

Audrian has $35.25The brush was 1/6 as much as the sketchbook.The sketchbook cost 3/4 the cost of the paint set.Audrina had $1.50 leftover.She bough a brush, a sketchbook and a paint set.

Based on the given information, we can form the following equations.

[tex]b=\frac{1}{2}s[/tex]

Where [tex]b[/tex] is the brush and [tex]s[/tex] is the sketchbook.

[tex]s=\frac{3}{4}p[/tex]

Where [tex]p[/tex] is paint set.

Now, the sum of all three items would give $1.50 of leftover.

[tex]p+b+s=35.25-1.50[/tex]

Replacing expressions, we have

[tex]p+\frac{1}{2}s+\frac{3}{4}p=30.75\\ \frac{7}{4}p +\frac{1}{2}(\frac{3}{4} p)=30.75\\\frac{7}{4}p+\frac{3}{8}p=30.75\\ \frac{56p+12p}{32}=30.75\\ 68p=984\\p=\frac{984}{68}=14.50[/tex]

Then, we use this value to find the other variables

[tex]s=\frac{3}{4}(14.50)=10.88[/tex]

[tex]b=\frac{1}{2}(10.88)=5.44[/tex]

Therefore, the brush cost $5.44, the sketchbook cost 10.88 and the paint set cost 14.50, approximately.

Answer: paint set costs $18

sketchbook costs $13.5

Brush costs $2.25

Step-by-step explanation:

Let x represent the cost of the paint set.

The sketchbook cost 3/4 the cost of the paint set. It means that the cost of the sketchbook is

3/4 × x = 3x/4

The brush was 1/6 as much as the sketchbook. It means that the cost of the brush is

1/6 × 3x/4 = 3x/24 = x/8

Audrina brought $35.25 to the art supply store. If Audrina had $1.50 leftover after buying these items, it means that the amount spent on the items is

35.25 - 1.5 = 33.75

Therefore,

x + 3x/4 + x/8 = 33.75

Multiplying through by 8, it becomes

8x + 6x + x = 270

15x = 270

x = 270/15

x = 18

The cost of the sketchbook is

(3 × 18)/4 = 13.5

The cost of the brush is

1/8 × 18 = 2.25

find the two smallest possible solutions to part 1a​

Answers

Answer: A. 5/12, 25/12

============================

Work Shown:

12*sin(2pi/5*x)+10 = 16

12*sin(2pi/5*x) = 16-10

12*sin(2pi/5*x) = 6

sin(2pi/5*x) = 6/12

sin(2pi/5*x) = 0.5

2pi/5*x = arcsin(0.5)

2pi/5*x = pi/6+2pi*n or 2pi/5*x = 5pi/6+2pi*n

2/5*x = 1/6+2*n or 2/5*x = 5/6+2*n

x = (5/2)*(1/6+2*n) or x = (5/2)*(5/6+2*n)

x = 5/12+5n or x = 25/12+5n

these equations form the set of all solutions. The n is any integer.

--------

The two smallest positive solutions occur when n = 0, so,

x = 5/12+5n or x = 25/12+5n

x = 5/12+5*0 or x = 25/12+5*0

x = 5/12 or x = 25/12

--------

Plugging either x value into the expression 12*sin(2pi/5*x)+10 should yield 16, which would confirm the two answers.

Answer:

a

Step-by-step explanation:

12sin(⅖pi x) + 10 = 16

sin(⅖pi x) = 6/12

⅖pi x = sin^-1(½)

⅖pi x = pi/6, pi - pi/6

⅖pi x = pi/6, 5pi/6

x = 5/12, 25/12

What is x?
7(x – 5) = 9x – 3

Answers

Answer:

x = -16

Step-by-step explanation:

[tex]7(x-5) =9x-3 \\7x -35 = 9x - 3\\3- 35 = 9x - 7x\\-32 = 2x\\x = \frac{-32}{2}\\\huge \red{\boxed{x = -16}}[/tex]

Answer:

x = -16

Step-by-step explanation:

We are presented with the equation 7( x - 5 ) = 9x - 3 and we are asked to find the value of x. The first thing to do with equations with brackets is expand them out to make solving the equation easier. Then you want to collect all the 'x' terms to one side and all the numerical values to the other so we can make solving the equation easier.

→ 7( x - 5 ) = 9x - 3

⇒ Expand out the brackets

→ 7x - 35 = 9x - 3

⇒ Minus 9x from both sides to collect the 'x' terms

→ -2x - 35 = -3

⇒ Add -35 to both sides to isolate -2x

→ -2x = 32

⇒ Divide both sides by -2 to isolate x

→ x = -16

Someone please help me

Answers

Answer:

1 infinity

2 one

3 no

4 one

5 infinity

Step-by-step explanation:

PLEASE HELP!! Due very soon!! 10 points! Which of the following functions, when graphed, would have a constant rate of change and an x-intercept of -5?
(See attached pic for multiple choices)

Answers

Answer:

D

Step-by-step explanation:

only solution C and D are linear function, and they are essentially straight lines. However, C have a x intercept of 5/2, so we rule out option C.

find all sqaure numbers greater 20 less then 100

Answers

Answer:

25, 36, 49, 64, 81

Step-by-step explanation:

I need someone to help

Answers

Answer:

240

Step-by-step explanation:

You must multiply 4 by 5, which will give you 20. Then multiply 20 by 12, which will give you the final result of 240.

Solve for X

x - 8= -10

a. x=2
b. x = -2
c. x = 18
d. x= -18

Answers

Answer:

b. x = -2

Step-by-step explanation:

x - 8 = -10

x = -10 + 8

x = -2

HELP!!! THIS IS URGENT!!!
Explain how you could use less than or equal to and greater than or equal to in a real life scenario.

Please come up with an original scenario! I really need help! Giving 35 points!

Answers

Answer:

Step-by-step explanation:

Consider a utlity bill which shows a minimum initial cost plus variable costs dependent upon how many units are sold.

Then:  total cost ≥ (fixed cost) + (unit cost)(number of units sold)  

This involves the "equal to or greater than" concept.

Giving 15 points need answer ASAP

Answers

I think this is the answer

8/3 mixed number -> 2 2/3

Answer:

[tex] 2 \frac{2}{3} [/tex]

Step-by-step explanation:

[tex] - 2 \frac{1}{3} - ( - 5) = - \frac{(6 + 1)}{3} + 5 \\ \\ = - \frac{7}{3} + 5 \\ \\ = - \frac{7}{3} + \frac{15}{3} \\ \\ = \frac{ - 7 + 15}{3} \\ \\ = \frac{8}{3} \\ \\ = 2 \frac{2}{3} [/tex]

Other Questions
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