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OpenStudy (calculusxy):
@shamil98
OpenStudy (shamil98):
10/3 x 15/4 x 2/5
Think of this as.
\[\large \frac{ 10 \times 15 \times 2 }{ 3 \times 4 \times 5 }\]
OpenStudy (calculusxy):
Oh. Made a silly mistake. I replaced a 3 instead of 4 in the third fraction. :/ And the answer is 5. Thanks for your help. But can you help with another one?
OpenStudy (calculusxy):
*second fraction
OpenStudy (shamil98):
sure.
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OpenStudy (calculusxy):
If the 5% sales tax on a snowmobile was $42, what was the price of the snowmobile not including tax?
A. $840
B. $210
C. $820
D. $640
OpenStudy (shamil98):
Basically, if 5% of something is 42 how much is that something?
0.05x = 42
solve for x.
OpenStudy (calculusxy):
You have to divide 42 by 0.05 right?
OpenStudy (calculusxy):
Would that be $840?
OpenStudy (shamil98):
Yes
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OpenStudy (calculusxy):
Mr. Summon paid $58.50 in interest on a loan that had 6% interest rate. How much did he borrow?
OpenStudy (calculusxy):
Is it $975? I got it cuz I did 58.50/0.06=975
OpenStudy (shamil98):
He paid 58.50 of interest, just subtract 975-58.50 =
OpenStudy (calculusxy):
That results to 91.75 and the answer choice doesn't have that.