Laura is training to run a race. She keeps track of the number of miles she runs. She has been training for 9 weeks, and she has run a total of 99 miles. At what rate has she been running, in miles per week?
9 miles per week
10 miles per week
8 miles per week
11 miles per week
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OpenStudy (truwhovian11):
@x__hazel__x @AYE_MY_PEEPS
OpenStudy (tennis5518):
clue?
OpenStudy (tennis5518):
guess?
OpenStudy (truwhovian11):
nope
OpenStudy (aye_my_peeps):
its 11
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OpenStudy (truwhovian11):
kk thank more
OpenStudy (jdoe0001):
11? what's wrong with 10?
OpenStudy (tennis5518):
9 miles per week
OpenStudy (aye_my_peeps):
bc 9 times 11 is 99
OpenStudy (tennis5518):
it 9 i did this before!
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OpenStudy (truwhovian11):
it was wrong T^T
OpenStudy (jdoe0001):
well, you can think about it this way
your mom drives her car, for 99 miles in 9 weeks, what's her speed per week?
OpenStudy (truwhovian11):
11
OpenStudy (tennis5518):
i said 9
OpenStudy (tennis5518):
what? how?
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OpenStudy (aye_my_peeps):
so i was right?
OpenStudy (truwhovian11):
but it was 11
Write Laura's running rate as the following ratio in fraction form.
Laura ran 99 miles in 9 weeks. To find how many miles she ran in 1 week, divide the numerator and the denominator by 9.
So, Laura has been running at a rate of 11 miles per week.