Ask question

Ask question

All categories

3 years ago

15

A marathon runner ran 15 miles in 120 minutes. What is the ratio of minutes per mile?

2 answers:

yawa3891 [41]3 years ago

5 0

Answer:

Step-by-step explanation:

Svetradugi [14.3K]3 years ago

3 0

Answer: So that means it would take him 7.9 minutes to run a mile

Step-by-step explanation:

Divide your run distance by your run time.

If you ran 2.5 miles and you ran for 20 minutes: 2.5 mi ÷ 20 min = 0.125 miles per minute. So the answer would be

15 miles= 79200

79200 divided by 120=660

You might be interested in

I WILL MARK BRAINLIEST

ICE Princess25 [194]

First one is : D (6)
Second one is : B (1/3)

Hope this helps!
Please give Brainliest!

5 0

2 years ago

Mike's biweekly salary is $2345.00. How much does he make<br> each week?

Aloiza [94]

He makes 1,172.50. you find this by dividing 2345 by 2 (since that’s his BI weekly salary which means every 2 weeks he gets paid) when you divide by 2 you get 1,172.50

8 0

3 years ago

Read 2 more answers

Tanya says .53 is greater than .7 because 53 is greater than 7 Can you explain her mistake?

sergey [27]

Take 0.53 and 0.7 by 100 to make them percents. 0.53 times 100 is 53% and 0.7 time 100 is 70%. so 0.7>0.53

4 0

3 years ago

Read 2 more answers

astra-53 [7]

Answer:

2+i times the square root of 7

4 0

3 years ago

Read 2 more answers

1. What is the value of the y variable in the solution to the following system of equations?

ollegr [7]

Part 1)

we have

$3x-6y=3$ ------> equation A

$7x-5y=-11$ ------> equation B

Multiply by $-7$ the equation A

$-7(3x-6y)=-7*3$

$-21x+42y=-21$ ------> equation C

Multiply by $3$ the equation B

$3*(7x-5y)=-11*3$

$21x-15y=-33$ -------> equation D

Adds equation C and equation D

$-21x+42y=-21 \\21x-15y=-33\\---------- \\ 42y-15y=-21-33\\27y=-54 \\ y=-2$

therefore

<u>the answer Part 1) is the option A </u>

$y=-2$

Part 2)

we have

$3x+y=6$

$y=-3x+6$ ------> equation A

$6x+2y=8$

Simplify Divide by $2$ both sides

$3x+y=4$

$y=-3x+4$ ------> equation B

the lines A and B are parallel lines, because the slope m is equal

so

The system has no solution

therefore

<u>the answer Part 2) is the option D</u>

There is no x value as there is no solution to the system.

Part 3)

we have

$4x+2y=6$ ------> equation A

$x-y=3$

$y=x-3$ ------> equation B

substitute equation B in equation A

$4x+2[x-3]=6$

$6x-6=6$

$6x=12$

$x=2$

therefore

<u>the answer part 3) is the option D</u>

$x=2$

Part 4)

Let

x---------> The number of one-step equations

y---------> The number of two-step equations

we know that

$x+y=1,120$

$x=1,120-y$ -------> equation A

$3x-2y=1,300$ ------> equation B

substitute equation A in equation B

$3[1,120-y]-2y=1,300$

$3,360-5y=1,300$

$5y=3,360-1,300$

$5y=2,060$

$y=412$

therefore

<u>the answer part 4) is the option D</u>

$y=412$

8 0

3 years ago

Read 2 more answers