9x-(-2y)-8x-(-12y) simplify​

Answer:

The answer is "2.2 h"

Step-by-step explanation:

Speed of Train B:

[tex]= \frac{3}{2} \times 70 \ mph \\\\= 105 \ mph[/tex]

Train B is then moving on:

[tex]= \frac{200 \ miles}{ 105 \ mph} \\\\= 1.905 \ h\\[/tex]

Then it takes Train A to the left:

[tex]\to 1.905\ h + 20 \ min \\\\= 1.905 \ h +0.333 \ h \\\\= 2.238 \ h[/tex]

To get train B to the reference point of train A = 2.2 h    

Answer:

You got it right

Step-by-step explanation:

I just did the math and its right

Answer:

The total point they will have is 1104.

Hope this helps.

Step-by-step explanation:

132*3= 396

30*50=1500

1500-396=1104

1104 is the answer.

Answer:

Step-by-step explanation:

Let the initial number of marbles be x

Then added 3 and got 9 as final number

Equation for this and solution

Answer:

A would be 60

B would be 50

C would be 70

D would be 110

F would be 70

Answer:

4 5

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

70 is the mean

95+84+31 =210

210/3 = 70

Answer:

14/29

Step-by-step explanation:

Simply substitute 5 for n.

a₅ = (5 + 9) / (5×5 + 4)

a₅ = 14 / 29

Answer:

90

Step-by-step explanation:

The number of different license plates that can be made in Idaho with 4 numbers followed by 2 letters is 6,760,000, option a is correct.

To determine the number of different license plates that can be made in Idaho with 4 numbers followed by 2 letters, we need to consider the possibilities for each element.

For the numbers, we have 10 options (0-9) for each of the four positions, resulting in a total of [tex]10^4 = 10,000[/tex] combinations.

For the letters, we have 26 options (A-Z) for each of the two positions, resulting in a total of [tex]26^2 = 676[/tex] combinations.

To find the total number of different plates, we multiply the number of possibilities for each element:

[tex]10,000 \times 676 = 6,760,000[/tex].

Hence, option a is correct.

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Answer:

exact form:

9/2

decimal form:

4.5

mixed number form:

4 1/2

Step-by-step explanation: sorry if this wasnt what you were looking for.

Answer:

I think it's false.

In mathematics, a function is a binary relation between two sets that associates every element of the first set to exactly one element of the second set.

6 has a relation to 5 and 10.

Answer:

No it's not a function

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

To get this answer, you add up the corresponding coordinates.

The x coordinates add to -4+4 = 0

The y coordinates add to 7+1 = 8

The z coordinates add to 2+(-3) = -1

Another way to express this is to consider

u = (a,b,c)

v = (d,e,f)

which add to u+v = (a+d,b+e,c+f)

sorry my previous answer is wrong so i cant help you

Answer:

100

Step-by-step explanation:

Since ten cups of ice cream is made from .5 cups of sugar, lets first find out how many cups of ice cream can be made form one cup of sugar

.5*2=1

10*2=20

Since the ratio of sugar to ice scream is .5/10 if you do anything to the top you need to do it to the bottom

so now you have 1/20

for every one cup of sugar there are 20 cups of icecream

now you need to multiply both top and bottom by five

1*5=5

20*5=100

5/100

You can make 100 cups of ice cream

*don't forget to label your answer with cups of ice cream*

100 cups of ice cream can be made with 5 cups of sugar.

Comparing quantities is the qualitative relation between two quantities which reflects the relative size of both the quantities.

It is given that,

10 cups of ice cream requires = 0.5 cup of sugar

⇒ 1 cup of sugar = 10/0.5 cups of ice cream

⇒ 1 cup of sugar = 20 cups of ice cream

Hence we see that Maya's ice cream machine makes 20 cups of ice cream from 1 cup of sugar.

Similarly, 5 cups of sugar = 5 x 20 cups of ice cream

⇒ 5 cups of sugar = 100 cups of ice cream

Therefore,100 cups of ice cream can be made with 5 cups of sugar.

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Answer:

2300

Step-by-step explanation:

Answer:

4f+2

Step-by-step explanation:

Step-by-step explanation:

Let the number of frogs be x.

According to statement,

2 more than the number of frogs is 4 .

So,

[tex]\boxed{\tt{2 + x = 4}}[/tex] is the required Equation.

If solution, then,

[tex]x = 4 - 2[/tex]

[tex]x = 2[/tex]

Hope it helps :)

Answer:

0,3+3,10

Step-by-step explanation:

Answer:

55 weeks

Step-by-step explanation:

15 ÷ 3 = 5

11 × 5 = 55

I hope this helps you :)

Answer:

x= 116/17

Step-by-step explanation:

5x+192−321+13=−12x

Step 1: Simplify both sides of the equation.

5x+192−321+13=−12x

5x+192+−321+13=−12x

(5x)+(192+−321+13)=−12x(Combine Like Terms)

5x+−116=−12x

5x−116=−12x

Step 2: Add 12x to both sides.

5x−116+12x=−12x+12x

17x−116=0

Step 3: Add 116 to both sides.

17x−116+116=0+116

17x=116

Step 4: Divide both sides by 17.

17x/17=116/17

x = 116/17

Answer:

a). $10.50

b). $15.75

c). 2 POUNDS

d). 3 POUNDS

Step-by-step explanation:

Answer of  option (a)=$10.50 , (b)=$15.75 , (c)=2 pound , (d)=3 pound.

Cost is an amount to be spent to buy something or obtain something.

Given that,

The cost for one pound of candies is $3.50,

(a)  The coast For 3 pounds of candies = 3.50×3=10.50

(b) The coast For 4.5 pounds of candies = 3.50×4.50=15.75

(c) For $3.50 ,1 pound candies can be bought, so for $7 , 2 pound candies can be bought (Since 3.50×2=7)

(d) For 3.50 , 1 pound candies can be bought, so for $10.50 , 3 pound candies can be bought (Since 3.50×2=7)

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The features of the quadratic function f(x) = x^2 + 10x + 21  are Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of symmetry is x = -5 so option (A) will be correct.

An algebraic equation of the second degree in x is a quadratic equation. The quadratic equation is written as ax2 + bx + c = 0, where x is the variable, and a must not be zero.

For example 3x² + 6x + 8 = 0 here x has highest term as 2 and coefficient of x² is not zero.

The standard form of a quadratic equation is ax² + bx + c

The x vertex is given -b/2a

So,

x-vertex = -10/2 = -5

So y = (-5)² + 10(-5) + 21 = -4

So vertex is (-5, -4)

The Y-intercept is given as (0,y)

So,

y = 21

Therefore

y-intercept = (0,21)

the x-intercept is given as (x,0)

So,

x = -7 , -3

Therefore

x-intercepts = (-7,0) and (-3,0)

The Axis of symmetry is given by -b/2a

So,

⇒ -10/2 = -5

Hence "Vertex = (-5,-4), y-intercept = (0,21), x-intercepts = (-7,0) and (-3,0), axis of symmetry is x = -5".

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Answer:

it droped 40 degres

Step-by-step explanation:

Answer:

The temperature dropped 4 degrees per 1000 feet.

Step-by-step explanation:

90 - 50)/(10,000:1,000) = 40/10 = 4 degrees per 1000 ft

Answer:

The answer is C

Step-by-step explanation:

(x, y) → (x + 8, y – 11)

Answer: The Answer is C (x, y) → (x + 8, y – 11)

Step-by-step explanation:

Right triangle LMN has vertices L(7, –3), M(7, –8), and

N(10, –8). The triangle is translated on the coordinate plane so the coordinates of L’ are (–1, 8).

Hope this helps

Stay Safe

Enjoy your day!!!

Answer:

Kindly check explanation

Step-by-step explanation:

Given the following information:

First three hours of typhoon: rate of Rainfall. = 25mm per hour

Typhoon slows down for an hour : then Rainfall began again at a constant rate of 20 mm per hour for the next 2 hours

Piecewise function which models Rainfall ad a function of time

Amount of Rainfall as a function of time = f(t)

f(t) = 25t ; if t≤ 3

When typhoon slowed down for an hour :

f(t) = 0;

f(t) = 25*3 ; for t ∈ (3, 4)

Then Rainfall at a constant rate of 20mm for another 2 hours

f(t) = (25 *3) + 20(t - 4) ; for t ∈ (5, 6)

Answer:

  KE = 100 J

Step-by-step explanation:

The question is asking you to use the formula with the values ...

  m = 8 kg . . . . . this 'm' stands for mass

  v = 5 m/s . . . .  this 'm' stands for meters

Putting these values into the formula, we have ...

  KE = 1/2(8 kg)(5 m/s)² = 100 kg·m²/s²

The units are equivalent to the derived SI unit "joules", abbreviated J.

The kinetic energy of the 8 kg mass is 100 J.