Josiah and Elena are planning to start running together a couple of days per week. In order to estimate how far they could run together in a certain amount of time, they each timed ah mile
solo run. Josiah ran the mile in 5 minutes, 30 seconds, while Elena ran the 7 mile in 5 minutes,
15 seconds.
a) What is the unit rate for each runner? Explain what the unit rate means.

answer: options?

step-by-step explanation:

1. 8

2. 9

3. 20

4. 3

5. 17

6. 2.2

7. 11.25

8. 1

9. 14

10. 2

step-by-step explanation:

thats the first half

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional