Answers FL-1205040-MJ Grade 7 Mathematics A -GF Cross ProductsQuestion 3

3

AssignmentMultiple Choice

Cross Products

Question 3 • FL-1205040-M/J Grade 7 Mathematics A -GF

Which of the paired items from the pet store can be used to create a proportion?

Answer

A

3 cans of tuna for $4.50 and 5 cans of chicken for $6

B

2 cans of beef for $5 and 6 cans of shrimp for $15.25

C

5 deluxe meals for $4.75 and 10 premium meals for $9

D

4 cans of salmon for $9 and 6 cans of chicken for $13.50

Explanation

A proportion means the two unit prices are equal. For choice D, $9 ÷ 4 = $2.25 per can, and $13.50 ÷ 6 = $2.25 per can, so the prices are proportional. The other pairs have different unit prices.

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