30 x + 7 (3 - 4 x) =

Answers

Answer 1

Answer:

I'm a bit rusty. But try 58x +21

Hope I helped you.


Related Questions

!HELP! What is the equation for the following absolute-value functions?

Answers

Answer:

  f(x) = |x -1|

Step-by-step explanation:

The parent absolute value function f(x) = |x| is shifted one unit to the right. We know that replacing x with (x-h) will shift a function h units to the right. Here, we want h=1. The shifted function is ...

  f(x) = |x -1|

Determine which of the following correctly states the ratio of pens and pencils. Select yes or no for each.

(For each one, you can just number it and put yes or no besides it)

Answers

Answer:

6 : 8, 3/4, 3 to 4

Step-by-step explanation:

As counted on the picture, there are:

6 pens and 8 pencils

The ratio pens to pencils is:

6 : 8 = 3 : 4 = 3 to 4

So there are 3 correct choices

How many solutions does the equation 3x − 7 = 4 + 6 + 4x have? Two Zero Infinitely many One

Answers

Answer:

one solution

Step-by-step explanation:

3x − 7 = 4 + 6 + 4x

Combine like terms

3x-7=4x+10

Subtract 3x from each side

-7=x+10

Subtract 10 from each side

-17 =x

There is one solution

Which lines are parallel? Justify your answer.


Lines a and b are parallel because their corresponding angles are congruent.

Lines a and b are parallel because their same side exterior angles are congruent.

Lines e and f are parallel because their corresponding angles are congruent.

Lines e and f are parallel because their same side exterior angles are supplementary.

Answers

Answer:

Lines a and b are parallel because their corresponding angles are congruent

Step-by-step explanation:

The corresponding angle postulate states that Two lines are said to be parallel if when cut by a transversal, their corresponding angles are congruent.

Therefore given line a and line b which is cut by transversal e, both corresponding angles are equal to 110 (congruent), therefore according to the corresponding angle postulate, we can say that line a and line b are parallel to each other.

Answer: A

Step-by-step explanation:

Which fraction has a terminating decimal as it’s decimal expansion? A.1/3 B.1/5 C.1/7 D.1/9

Answers

Answer:

B

Step-by-step explanation:

Let's turn these fractions into decimals.

A: 1/3 = 0.333333......

B: 1/5 = 0.2

C: 1/7 = 0.142857143142....

D: 1/9 = 0.1111111.....

As you can see, the only decimal expansion that terminates, or has a finite number of digits after the decimal point, is 1/5.

A rectangular turtle aquarium is 6 ft long by 4 ft wide. The aquarium is enlarged by increasing
the length and width by an equal amount in order to double its area. What are the dimensions of
the new aquarium?

Answers

Answer:

8ft x 6ft

Step-by-step explanation:

For this problem, we want to create measurements of length and width that double our current area.  First we need to find the current area.

C_Length = 6 ft

C_Width = 4 ft

C_Area = C_Length * C_Width

C_Area = 6 ft * 4 ft = 24 ft^2

Now we want our new area to be double the old area.

N_Area = 2C_Area

N_Area = 2 * 24 ft^2

N_Area = 48 ft^2

Now we simply need to find the increase in width and length, distributed equally, that will create the new area.

N_Area = (C_Length + x) * (C_Width + x)

Where x is the amount that each variable is increased by to create the new area.

Now we simply solve for x.

N_Area = (C_Length + x) * (C_Width + x)

48 = (6 + x) * (4 + x)

48 = 24 + 10x + x^2

0 = -24 + 10x + x^2

Now we can either apply the quadratic formula or attempt to factor using the constant break down method.

(x + 12) (x - 2) = 0

x = -12; x = 2

Note that we will choose x = 2 since the other option would require us to have negative material, which is impossible.

Now we can check to validate our answer by plugging in the value of x.

48 ?= (6 + 2) * (4 + 2)

48 ?= (8) * (6)

48 == 48

Thus, we have found the dimensions of the new aquarium, 8ft x 6ft.

Cheers.

rate of change x=3 x=5

Answers

Answer:

The average rate of change for g(x) is      { g(x+h)-g(x) }/h

In our case,

                             { log(5+1) - log(3+1) }/(5-3) =    (.778-.602)/2 = .088

Compare it to the derivative of log(x+1) for the values: the derivative is D = (1/ln10)(1/(x+1))

at x = 3      D = .1086

at x = 4      D =  .0869

at x = 5      D = .0724

Take the average of D over the interval and you get .0893  and very close to the midpoint of the x values

Step-by-step explanation:

The cost C of mailing a letter first class in the United States is $0,45 for the first ounce.
Each added ounce, or fraction of an ounce, o, costs an additional $0.20.
1. Write an equation to represent the total cost, C, to mail a first class letter that
weighs n ounces.
C=

Answers

Answer: C= 0.25 + 0.20n

Step-by-step explanation:

Let n be the number of ounces of the letters.

As per given,

Cost per ounce = $0.45

Additional cost per ounce = $0.20

So, the equation to represent the total cost, C, to mail a first class letter that  weighs n ounces will be

C= 0.45 + (n-1)(0.20)

⇒ C= 0.45 + 0.20n-0.20

⇒ C= 0.25 + 0.20n

Hence, the required equation is  C= 0.25 + 0.20n .

The arcs in the diagram are labeled with their measures in degrees. What is the measure of arc uv?

Answers

Answer:

10 steps

Step-by-step explanation:

What is the turning point or vertex of the parabola???

Answers

Answer : (-1,-4)

Explained:
y = 3(x^2+2x) -1
y = 3(x^2 + 2x + 1 - 1) -1
y = 3(x^2 + 2x + 1) -1-3
y = 3(x+1)^2-4

Vertex = (h,k)
= (-1,-4)

Your team scored a total of 123 points. 67 points were scored in the first half. How many were scored in the second half?​

Answers

Answer:

If the total scored was 123 and your team scored 67 in the first half then in the second half they will score 56 points.

Step-by-step explanation:

Liz is using the distributive property to evaluate the expression 27 (36) by using friendlier numbers. Her work is shown below. Liz’s Work 27(36) Step 1 27 (3 + 12) Step 2 27 (3) + 27 (12) Step 3 81 + 324 Step 4 405 What was the first error that Liz made? PLZ HELP ME I DONT UNDERSTAND HELP ME PLZ!!!!!

Answers

Answer:

In step 1

Step-by-step explanation:

She has [tex]27(36)=27(3+12)[/tex]

this mean that 36=3+12

that's her mistake

Answer:

step 1

Step-by-step explanation:

i need help................

Answers

Answer:

Hey there!

Three basic rules determine this:

Positive Numbers are always greater than Negative Numbers.

If both are positive, the number with the greater magnitude is larger.

If both are  negative, the number with the smaller absolute value is larger.

Let me know if this helps :)

Answer:

23x15=23x(10+5)                     Method 1 and 5

=23x10+23x5

=230+115

23x15=(20+3)x15                      Method 2

=20x15+3x15

=300+45

23x15=(20+3)x(10+5)

   =20x10+20x5+3x10+3x5      Method 3 and 6

=200+100+30+15

Step-by-step explanation:

(Score for Question 1:
of 5 points)
1. Suzette ran and biked for a total of 80 miles in 9 hours. Her average running speed was 5 miles per hour
(mph) and her average biking speed was 12 mph,
Let x = total hours Suzette ran.
Let y = total hours Suzette biked.
Use substitution to solve for x and y. Show your work. Check your solution.
(a) How many hours did Suzette run? I
(b) How many hours did she bike?
Answer:​

Answers

Answer:

A) 4 Hours (of running)

B) 5 Hours (of biking)

Step-by-step explanation:

So Suzette ran and biked for a total of 80 miles,

and she did all of that in 9 hours.

Let x equal the total hours of Suzette ran and let y equal the total hours of Suzette biked.

Therefore:

[tex]x+y=9[/tex]

This represents the total hours. We know that the hours she had ran and biked totals 9. Thus, x plus y must equal 9.

And also:

[tex]5x+12y=80[/tex]

The 5x represents the miles she had ran in x hours, while the 12x represents the miles she had biked in y hours. All together, they must equal 80 miles total.

Therefore, our system is:

[tex]x+y=9\\5x+12y=9[/tex]

We can solve this using substitution. First, subtract x from the top equation:

[tex]x+y=9\\y=9-x[/tex]

Now, substitute the y into the second equation:

[tex]5x+12y=80\\5x+12(9-x)=80[/tex]

Distribute:

[tex]5x+108-12x=80[/tex]

Combine like terms:

[tex]-7x+108=80[/tex]

Subtract 108 from both sides:

[tex](-7x+108)-108=(80)-108\\-7x=-28[/tex]

Divide both sides by -4:

[tex]x=4[/tex]

Therefore, Suzette ran for a total of 4 hours.

Since she biked and ran for a total of 9 hours, she must have biked for 9-4 or 5 hours.

Checking:

4 hours of running plus 5 hours of biking does indeed equal 9 hours total:

[tex]4(5)+5(12)=20+60=80[/tex]

So by running 5mph for 4 hours and by biking 12mph for 5 hours, she did indeed reach a total of 80 miles.

Rewrite as a simplified fraction.
\large{0.\overline{8} = {?}}0.
8
=?0, point, start overline, 8, end overline, equals, question mark

Answers

Answer:

[tex]\bold{x = \dfrac{8}{9}}[/tex]

Step-by-step explanation:

We have to rewrite the below as simplified fraction.

[tex]\large{0.\overline{8} = {?}}[/tex]

Solution:

Let [tex]x =0.\overline 8[/tex] which means [tex]x =0.888888.......[/tex]

Here a bar over 8 means that there the given decimal value is non terminating and there are a large numbers of 8 present after the decimal.

To solve the given non terminating decimal as fractions, we will have to eliminate the bar term from the given value.

So, we can rewrite [tex]x[/tex] as:

[tex]x =0.8\overline8[/tex] ......(1)

Now, let us multiply the above with 10.

[tex]10x = 0.8\overline 8 \times 10\\\Rightarrow 10 x= 8.\overline8[/tex] ....... (2)

Now, let us subtract (1) from (2):

[tex]10x-x=8.\overline8 - 0.\overline8\\\Rightarrow 9x = 8\\\Rightarrow \bold{x = \dfrac{8}{9}}[/tex]

So, in simplified fractions:

[tex]\large{0.\overline{8} = \bold{\dfrac{8}{9}}}[/tex]

Answer:

There is no statements/info.

Step-by-step explanation:

A set of points forming a closed figure, every point of which is a fixed distance from a given center best defines which shape? * Rectangle Square Rhombus Circle

Answers

Answer: D. Circle

Every point on the circle is the same distance away from the center. The distance from any point to the center is exactly the radius, and twice that is the diameter.

ILL MARK YOU BRAINLIEST!!!!!! ∠A = 5x - 15.∠B = 2x + 21.Solve for x and then find the measure of ∠B.

Answers

Answer:

x=6 b=45

Step-by-step explanation:

45=5x-15. 45-15=30. 5x=30. x=6. b=45

Find the exact circumference of a circle with a diameter of 5 inches

Answers

Answer: circumference of circle=2πr or πd(since d=2r)

2ײ²/7×⁵/2

Two cancels two

22×5/7

=110/7

=15•71

PLEASE HELO ASAP WILL MARK BRAINLIEST

Answers

A.) 1/2

B.) 3

For the first one, just plug the value of x (4) everywhere you see x in the formula.

For the second one, place 1 wherever you see f(x)

Hope this helps

during a basketball game, your team scored three times as many 2-point field goals than it did 3-point field goals, and scored a total of 90 points. How many field goals did your team score?

Answers

Answer:

40 field goals

Step-by-step explanation:

Represent 2-point with x and 3-point with y;

Given

[tex]x = 3y[/tex]

[tex]2x + 3y =90[/tex]

Required

Determine x and y

[tex]x = 3y[/tex]

[tex]2x + 3y =90[/tex]

Substitute 3y for x in [tex]2x + 3y =90[/tex]

[tex]2(3y) + 3y = 90[/tex]

[tex]6y + 3y = 90[/tex]

[tex]9y = 90[/tex]

Divide both sides by 9

[tex]y = 10[/tex]

Substitute 10 for y in [tex]x = 3y[/tex]

[tex]x = 3 * 10[/tex]

[tex]x =30[/tex]

The number of field goals = x + y

[tex]x + y = 30 + 10[/tex]

[tex]x + y = 40[/tex]

Hence, the number of field goals is 40

A business school event invites all of its graduate and undergraduate students to attend. Of the students who attend, male graduate students outnumber male undergraduates by a ratio of 7 to 2, and females constitute 70% of the group. If undergraduate students make up 1/6 of the group, which of the following CANNOT represent the number of female graduate students at the event?

a. 18
b. 27
c. 36
d. 72
e. 180

Answers

B)27
To solve this problem using a double set matrix, first jot down one set of variables as the row headings and The other as column headings, as well as a row and column for “totals”. Now all you need to do is add in the information line by line as you read through the question.

Which equation below represents the equivalent exponential equation for the equation of log6 256=x?(in picture)

Answers

Answer:

Here is my answer I hope this helps <(^w^)>

The correct expression is [tex]6^{x} = 256[/tex]

What is exponential equation?

An exponential equation is an equation with exponents where the exponent a part of the exponent is a variable.

Given an exponential equation, [tex]log_{6} 256 = x[/tex]

Using formula :-

[tex]y = log_{a} x \\x = a^{y}[/tex]

[tex]log_{6} 256 = x[/tex]

[tex]6^{x} = 256[/tex]

Hence, the correct answer is [tex]6^{x} = 256[/tex]

For more references on exponential equation, click;

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mark the wheat and rice product in areas in the map of India
PLS MAKE AND SHOW ON THE MAP
I will definitely mark you brainliest​

Answers

this will be helpful and don't forget to mark me

I found this on B i n g because I don't have a map of India.

Rice is mainly grown and eaten in South and East India, while wheat is predominantly grown and eaten in North and West India.

(The first picture is top ten).

(The second one is all).

♡ Anyways I hope this helped! ♡

❀ Have an amazing day or night! ❀

Brainiest is appreciated! ♡

Write the number in standard notation. 9x 10^-4

Answers

Answer:

0.0009

Step-by-step explanation:

9*10⁻⁴ = 0.0009

help me please!!!i rlly need it!

Answers

Answer:

7.5

Step-by-step explanation:

How long does it take a car to travel 1 mile if its average speed is 40 mph? The answer is 1/40 of an hour or 1.5 minutes. multiply this by 5

Answer:

0.1 hours to the nearest tenth (0.125 hours exact)

Step-by-step explanation:

For this problem, we simply need to do a conversion to find the length of time.

We are given the rate 40 miles per hour, and the distance of 5 miles.  We simply need to know the amount of time.

5 miles * (1 hour per 40 miles) =  1 hour / 8

Note, the distance unit cancels out.

So, to travel 5 miles it will take 1/8 of an hour.

1/8 as a decimal is equal to 0.125.  The answer rounded to the nearest tenth would be 0.1 hours, since the 2 rounds down.

Cheers.

1/3x+5=12 i do not understand this math equation

Answers

Answer: x = 21

Step-by-step explanation: First, isolate the x term by

subtracting 5 from both sides of the equation.

We get 1/3x = 7.

Next, multiply both sides of the equation by

the reciprocal of 1/3 which is 3/1 to get x by itself.

On the left, 3/1(1/3) cancels and on the

right when we multiply 7(3/1), we get 21.

So we have x = 21.

How do i match the statements

Answers

Step-by-step explanation:

Michelle orders soup, or she orders salad goes with disjunction.

The fireworks were loud and colorful goes with conjunction.

If the watch is broken, then it it showing the wrong time goes with conditional.

Which religions were established during the Common Era (CE)? Check all that apply. ​

Answers

Answer:

Christianity and Islamic religion

Step-by-step explanation:

Based on the picture you provided It would be Christianity and Islamic religion.

Based on the Events of the Common Era (year 0) was the birth of Jesus of Nazareth. From Year 0 to year 29 Jesus of Nazareth expanded his faith. During the 29th year Jesus of Nazareth was crusified in Jeruselem.

Estimated around Year 570 Muhammad  (the Prophet of Islam) was born and rose his religion to great heights. In 632 Muhammad died.

Hope this helps

Answer:

Christianity and Islam

Step-by-step explanation:

Need Help ASAP algebra 2​

Answers

Answer:

a = √10

Step-by-step explanation:

a² + b² = c²

a² + 9² = (√91)²

a² + 81 = 91

a² = 10

a = √10

hope this helps :)

Answer:

square root of 10

Step-by-step explanation:

a^2 + b^2 = c^2

=> a^2 + 9^2 = square root of 91^2

=> a^2 + 81 = 91

=> a^2 = 91 - 81

=> a^2 = 10

=> a = square root of 10

Carlos spent 1 1/4 hours doing his math homework. He spent 1 1/4 as much time practicing piano. How many hours did Carlos spend practicing piano?

Answers

Answer:

7.6525 hours

Step-by-step explanation:

11 / 4 = 2.75 so he spent 2.75 h doing his HW.

and he spent (11/4) x 2.75 practicing piano

(11/4) x 2.75 = 7.6525

The number of hours Carlos spends practicing piano will be 7.6525 hours.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

It is given that 11 / 4 = 2.75  he spent 2.75 h doing his HW. and he spent (11/4) x 2.75 practicing piano.

The number of hours Carlos spends practicing piano will be calculated as below:-

(11/4) x 2.75 = 7.6525 hours

Therefore,  the number of hours Carlos spends practicing piano will be   7.6525 hours.

To know more about expression follow

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