Transcript Math Triumphs
7-3 Solve.
NATURE The herring can swim 74 miles in 20 hours. The cod can swim 35 miles in 7 hours. Which fish swims at a faster rate?
Understand
Read the problem. Write what you know.
The herring can swim
74
hours.
miles in
20
The cod can swim
35
hours.
miles in
7
7-3 Plan
Pick a strategy. One strategy is to solve a simpler problem. Find each unit rate.
7-3 Solve
Write each rate as a fraction. Find an equivalent rate with a denominator of 1.
Unit Rate of the Herring Unit Rate of the Cod
7-3
Compare the unit rates for each fish.
3.7
miles/hour <
5
miles/hour The
cod
swims at a faster rate.
7-3 Check
Does the answer make sense? Did you answer the question?