how are ratios, rates, and unit rates to solve problems?

Question

I am doing my homework and this is the question how are ratios, rates, and unit rates to solve problems?

 

Answer 1

The word used ought to appear in the question, immediately after 'unit rates.'

 

Unit rates can conveniently be multiplied by any desired number in order to answer questions about differently scaled questions. E.g. If three marbles cost 30 cents, how much will eleven marbles cost?

 

A unit rate is a ratio such as 30 cents : 3 marbles = 10 cents per (1) marble, after doing the division.