Ontario 09 Applied (MFM1P)

Simplify and compare rates

Which of the following is cheaper per item: $6$6 pencil cases for $\$24$$24 at Shop ZYX or $9$9 pencil cases for $\$54$$54 at Shop PWR?

a

What is the cost of a single pencil case at Shop ZYX?

b

What is the cost of a single pencil case at Shop PWR?

c

Hence which is the best place to buy pencil cases, if you want the best price per item?

Shop ZYX

A

Shop PWR

B

Shop ZYX

A

Shop PWR

B

Easy

Approx a minute

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Solve problems involving ratios, rates, and directly proportional relationships in various contexts (e.g., currency conversions, scale drawings, measurement), using a variety of methods (e.g., using algebraic 15 20 x 4 reasoning, equivalent ratios, a constant of proportionality; using dynamic geometry software to construct and measure scale drawings)