Back to Compute unit rates associated with ratios of fractions — Problem 3 · Task Set 1

7.RP.A.1 Tutor Intake -- Unit Rates with Fractional Quantities

This short check helps your tutor see where to start. Work each problem on
your own, without a calculator. If you are not sure, give your best try --
every answer helps your tutor plan your first few sessions.

Grade 7·10 problems·~10 min·Common Core Math - Grade 7·standard·7-rp-a-1

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Concepts

A floor tile covers $3/4$ square foot and costs $\text{\char"0024}5/6$ . Which
quantity should go in the numerator to find the cost in dollars
per square foot?

The cost, $\text{\char"0024}5/6$ , since the desired unit "dollars per square foot" puts dollars on top.

The area, $3/4$ square foot, since it was given first in the problem.

Neither -- cost and area cannot form a unit rate because they measure different things.

Both quantities should be added together first, then divided by 2.