The price of a 9 minute phone call is ​$3.15. What is the price of a 17 minute phone​ call?

Answer:

a = 4

Step-by-step explanation:

So your goal here is to get the variable on just one side, so add 4a to both sides.  This cancels out the 4a on of of the sides and puts a on the other side.  The new equation is 8 = -2a + 4a.  Combine like terms to get 8 = 2a.  Divide both sides by 2 to get a = 4.    You can check your work by replacing a with 4:  

8 - 4(4) = -2(4)

8 - 16 = -8

-8 = -8

Since the final result is true, (-8 does equal -8,) a = 4.  

Answer:

6.5

Step-by-step explanation:

0.88/13.50= x/100

Answer:

3a^5/4b^5

Step-by-step explanation:

The answer you have selected! :)

Answer:

It should be D

Step-by-step explanation:

Umm the ^2 and ^-2 cancel each other out and so do the ^3 and ^-3 and then all you have to do is simply simplify 6/8 = 3/4 bc half of 6 is 3 and half of 8 is 4

Answer:

£234.90

Step-by-step explanation:

270(1-13/100)

lets break it down:

step 1=  13/100=0.13

step 2= 1-0.13=0.87

step 3= 270 x 0.87=234.9

final answer=£234.90

i hope it helps

Answer:

D. 10 units

Step-by-step explanation:

Using the distance formula:

d = √(x2 – x1)² + (y2 – y1)²

Plug in the values of the points:

d = √(3 – (-5))² + (-2 – 4)²

d = √(8)² + (-6)²

d = √64 + 36

d = √100

d = 10

Answer: 30

Step-by-step explanation:

9/10 = numerator 9 x 3 = 27 and  denominator 10 x 3 = 30

2/15 = numerator 2 x 2 = 4 demoninator 15x 2 = 30

This is to make it easier to subtract with a common denominator

= 27-4/ 30

= 23/30

the lowest common denominator is 30

Answer:

Lowest common denominator are

7/10

9514 1404 393

Answer:

Step-by-step explanation:

Let r represent the number of hits Ricky got. Then Pedro's hits were r+281 and their total was ...

  r + (r +281) = 2679

  2r = 2398

  r = 1199

  r+281 = 1480

Pedro got 1480 hits; Ricky got 1199.

_____

Additional comment

The two answers to a "sum and difference" problem are half the sum plus or minus half the difference. Here, those values are (2679/2) ± (281/2). Pedro got more hits, so his number is (2679+281)/2 and Ricky's number is (2679-281)/2, as above.

Answer:

1800

Step-by-step explanation:

60.30= 1800

Answer:

the number of deliveries would be 13

And, the equation is d ≥ 12.50

Step-by-step explanation:

The inequality function is given below:

Let us assume the d be the number of deliveries

10 × 8 + 6 × d ≥ 155

80 + 6d ≥ 155

6d ≥ 155 - 80

6d ≥ 75

d ≥ 75 ÷ 6

d ≥ 12.50

hence, the number of deliveries would be 13

And, the equation is d ≥ 12.50

Answer:

5 miles.

Step-by-step explanation:

Because area is just length times width so in that sense 20/4 is 5 :)

Answer:

slope m=--3/-2=-3/2 is required slope

Answer:

m = -3, b = -2

Step-by-step explanation:

The equation is written in the form of slope-intercept, where m = slope and b = y-intercept.

The slope is the number before x. For the equation y = -3x - 2, it's -3.

The y-intercept is the constant. For the equation y = -3x - 2, it's -2.

Hence, m = -3, and b = -2.

[tex]\rule{350}{4}[/tex]

[tex]\frak{-Dream-}[/tex]

Answer:

Step-by-step explanation:

Answer:

e = -1

Step-by-step explanation:

1. 9e + 4 = 5e + 14 + 14e

2. 9e = 5e + 10 + 14e

3. 9e = 19e +10

4. -10e = 10

5. e = -1

Hope that helps

Answer:

e - 10

Step-by-step explanation:

1.) We need to manipulate the equation to get e by itself.

2.) To solve the equation, do the following steps;

9e + 4 = −5e + 14 + 13e

9e + 4 = 14 + 8e (Combine like terms)

9e + 4 − 8e = 14 + 8e − 8e (Subtract 8e from each side)

e + 4 = 14 (Combine like terms)

e + 4 - 4 = 14 - 4 (Subtract 4 from each side)

e = 10 (Combine like terms.

3.) Answer: e = 10.

Now lets check our work. To check your work, do the following steps;

9e + 4 = −5e + 14 + 13e

9e + 4 = 14 + 8e

9(10) + 4 = 14 + 8(10)

90 + 4 = 14 + 80

94 = 94

By doing those steps we can confirm the answer, e = 10, is true.

Answer:

2 is the answer thanks pls give brainliest

Answer:

99inches

Step-by-step explanation:

The ratio of the sides of a triangle =2:4:9.

perimeter = 165 inches,

Total ratio= 2+4+9=15

perimeter = 165

Divide the perimeter by total ratio

165/15=11

Each of the sides

= (2×11) =22

(4×11) =44

(9×11)=99

the length of the longest side= 99inches

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

x = 25

[tex] m\angle \: MPQ = 125 \degree [/tex]

Step-by-step explanation:

[tex]5x \degree = (3x + 50) \degree \\(corresponding \:\angle s) \\\\ 5x = 3x + 50 \\ \\ 5x - 3x = 50 \\ \\ 2x = 50 \\ \\ x = \frac{50}{2} \\ \\ x = 25 \\ \\ m\angle MPQ = (3x + 50) \degree \\ \\ m\angle MPQ = (3 \times 25 + 50) \degree \\ \\ m\angle \: MPQ = (75 + 50) \degree \\ \\ m\angle \: MPQ = 125 \degree \\ \\ [/tex]

Answer:

965 parts would not be defective.

Step-by-step explanation:

So for every 400 parts, 14 are defective. That means 386 are not defective. 1000 is 2.5 times as many as 400. So multiply 386 by 2.5 to get your answer.

386/1 * 5/2

193/1 * 5/1

965/1

That means for every 1000 parts, 965 would not be defective. The proportion(s) would be 386:400/965:1000 here.

Answer:

38 degrees

Step-by-step explanation:

If the line is tangent that means it forms a 90 degree angle. The angle measure of the inside of a triangle is equal to 180 degrees. If you add 52 and 90 you get 142. Subtract this amount from 180 and you will get the measure of m TMS

Answer:

1.6

Step-by-step explanation

You can use the angles given to figure out the degree of the angles given and then with that you set up your equation as v divided by Sin(16) is equal to 5.8 divided by sin(87) and cross multiply.

After you cross multiply you should get approximately 1.5987 is equal to v times sin(87)

you then fin out the approximation of sin(87) which should be around 0.9986 and divide both sides by 0.9986 so v is alone and your answer comes out to be v = 1.6

Answer:

the first one

Step-by-step explanation:

the rest of the options have triangles and a rectangular prism doesnt have any triangle shaped sides. hope my answer makes sense :)

Answer: the one that looks like an upside t or it can be called (A)

Step-by-step explanation:

do the folding in your head

Answer:

1 and 2

Step-by-step explanation:

that is the answer

Answer:

mean: 10.2

median: 12

Step-by-step explanation: