SOLUTION: the ratio of pennies to dimes in a coin jar is 3 to 4. Of Samantha counted out 27 pennies, how many dimes were in the jar?

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Question 1048297: the ratio of pennies to dimes in a coin jar is 3 to 4. Of Samantha counted out 27 pennies, how many dimes were in the jar?
Answer by Edwin McCravy(20066) About Me  (Show Source):
You can put this solution on YOUR website!
P%2FD%22%22=%22%223%2F4

P%22%22=%22%2227

Substituting 27 for P:

27%2FD%22%22=%22%223%2F4

Cross-multiply:

27%2A4%22%22=%22%223%2AD

Divide both sides by 3:

%2827%2A4%29%2F3%22%22=%22%22D

36%22%22=%22%22D

36 dimes.

Edwin