A collection of coins contains 12 nickels, 3 quarters, and 9 dimes. What is the percent of dimes in the collection?Express your answer to the ones place.

2 answers

Add them all together and then divide by the number of dimes. Put your answer in the ones place.
Add them all together, THEN DIVIDE THE NUMBER OF DIMES BY THE TOTAL. Multiply the answer by 100 to convert to percent. Round to the ones place; i.e., a whole number.