Help. Jim runs 10 miles in 85 minutes. At the same rate, how many minutes would he take to run 8 miles?

Answer:

The system is:

x + y = 8

x - y = -14

And the solution is:

x = -3

y = 11

Step-by-step explanation:

We have two numbers x and y, such that:

x + y = 8   (the sum is equal to 8)

x - y = -14  (the difference is equal to -14)

This is the system of equations we need to solve.

To solve the system, we first need to isolate one of the variables in one of the equations, I will isolate x in the first equation:

x = 8 - y

Now we can replace this in the other equation to get:

(8 - y) - y = -14

8 - 2*y = -14

8 + 14 = 2*y

22 = 2*y

22/2 = y

11 = y

Now we can replace this in the equation "x = 8 - y"

To get:

x = 8 - 11  = -3

Then the solution to the system is:

x = -3 and y = 11

Answer:its B. I took the test

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

If you count the hours by how much each answer choice is giving you, you will get the answer. (First job is 4 hours and a few mins. Answer choice C is $6 an hour. So 4 times 6 is 24 plus the extra minutes.)

Answer:

Try A

Step-by-step explanation:

Answer:

The length of the radius is 2.95 units

The  length of the radius of the circle is 2.95 units.

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre.

Given that  blue segment below is a diameter of O

Diameter is five point nine.

We need to find the radius of the given circle.

Radius is equal to diameter by two

Radius= Diameter/2

Now put value of diameter in the above formula

Diameter = 5.9

Radius =5.9/2

=2.95

Hence, the  length of the radius of the circle is 2.95 units.

To learn more on Circles click:

https://brainly.com/question/11833983

#SPJ7

Answer:

b. 3/2

Step-by-step explanation:

Answer:

$3.98

the unit rate can be determined by dividing the total costs of the pistachio by the total pounds bought

Step-by-step explanation:

unit rate = total cost / total pounds bought

7.96 / 2 = $3.98

1.99 / 0.5 = $3.98

Answer:

The answer to number 7 is x=4

Answer:

Step-by-step explanation:

x=−10, y=−3

x=10, y=7

y=7,x=10

y=−3,x=−10

Answer:

A, C and D

Step-by-step explanation:

B is left out because the hypotenuse of 1 and 2 will be appx 2.24 but the rest are good to go

Answer:

Step-by-step explanation:

x = 6 (6 minutes)

5.3 x 6 + 23 = 54.8

5.3 x 6 = 31.8

31.8 + 23 = 54.48

2.  C.  23: the amount of the temperature increased each minute.

Let me know if this helps!

Answer:

-30

Step-by-step explanation:

[tex]\boxed{slope = \frac{y1 - y2}{x1 - x2} }[/tex]

where (x₁, y₁) is the first coordinate and (x₂, y₂) is the second coordinate.

Slope

[tex] = \frac{12 - ( - 18)}{11 - 12} [/tex]

[tex] = \frac{12 + 18}{ - 1} [/tex]

= -30

Answer:

z = 13/20

Step-by-step explanation:  

The steps are in the pictures below!

Answer:

There is no circle

Step-by-step explanation:

If you post the circle, I will help

Make sure to attach a file of the photo (Please no links)

Answer:

A,C

Step-by-step explanation:

Answer:

140

Step-by-step explanation:

hope i helped!

Answer:

i think you have to multiply the sides..

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) PQ² + PR² = QR²

PQ² + 14² = 50²

PQ² + 196 = 2500

           PQ² = 2500 - 196 = 2304

            PQ = √2304

PQ = 48

Sin Q = [tex]\frac{opposite side}{hypotenuse}=\frac{14}{50}\\[/tex]

[tex]Cos Q = \frac{adjacent side}{hypotenuse}=\frac{48}{50}\\\\Tan Q = \frac{oppsite}{adjacent}=\frac{14}{48}\\\\\\\Sin R = \frac{48}{50}\\\\Cos R = \frac{14}{50}\\\\Tan R = \frac{48}{14}\\\\[/tex]

2) tan 48 = [tex]\frac{x}{17}[/tex]

x = 17 * tan 48  = 17 * 1.1106 = 18.8802

x = 18.8802

Answer:

28 - 3h

Step-by-step explanation:

We must do the work seen inside parentheses first.

Thus, we havve 4(7) - 3h, which simplifies to

28 - 3h

Answer:

It would be 1/2

Step-by-step explanation:

y = (1/2)x has the format y = kx, where k is the const. of prop.  In this particular case that const. of prop. is (1/2).

Answer:

I'm not sure if I'm correct but I think it's F=5

Step-by-step explanation:

6 times 5 = 30

Answer:

The answer is B.

Step-by-step explanation:

You can solve this problem by plugging in 2 for x in the given equations.

2(2) - 3 = 19 is false

3(2) + 2 = 8 is true

4(2) - 4 = -4 is false

5(2) + 1 = 10 is false

Answer:

C. [tex]\frac{Part}{Whole} =\frac{Percent}{100}[/tex]

Step-by-step explanation:

A good way to think about it is this. You know that 1/2 is 50%. It's common knowledge.

In this case 1 is the Part and 2 is the whole

[tex]\frac{Part}{Whole} = \frac{1}{2} = .50[/tex]

So to get 50% in decimal form we would have to divide it by 100 to move the decimal over two places

[tex]\frac{Percent}{100} = \frac{50}{100} = .50[/tex]

Therfore,

[tex]\frac{1}{2} = \frac{50}{100}[/tex]

or

[tex]\frac{Part}{Whole} =\frac{Percent}{100}[/tex]

Answer:-4

Step-by-step explanation:

Answer:

13. 24ft = 8yd

14. 120in = 10 ft

15. 2 yd = 72 in

16. 5 yd = 180 in

17. 20yd = 60 ft

Step-by-step explanation:

24ft*12 in = 288 inches/36 inches(1yd) = 8yd

120in/12in = 10ft

2yd*36in = 72 in

5yd*36in = 180 in

20yd*36in = 720/12in = 60ft

1ft = 12inches

1 yd = 36 inches

Answer:

x=14

Step-by-step explanation:

Answer:

x = 14

Step-by-step explanation:

2(x - 9) = 10

2x - 18 = 10

add 18 o each side of the equation:

2x = 28

divide both sides by 2:

x = 14

Well, we know that a triangle's angles add up to 180°, so 45 + 35 + x = 180, and x = 100.

The third angle is 100.

Answer:

The measurement of the third angle is 100 degrees.

Step-by-step explanation:

Just add 45 + 35 which equals to 80. Every triangle's angles equal to 180 degrees so subtract 80 from 180. That equals 100 degrees.

Equation: 45+35=80

180-80=100

Hope this helps! :)