Question

6TH GRADE MATHEMATICS RATES & RATIOS

DONT ANSWER IF YOU DONT KNOW

Which is the best buy: $4.08 for a 16-ounce box of cereal, $4.50 for an 18-ounce box of cereal, or $5.39 for a 22-ounce box of cereal?

Answer 1

you want to find the cheapest per 1 ounce

so just divide cost by ounces

4.08/16=0.225 per ounce
4.50/18=0.250 per ounce
5.39/22=0.245 per ounce
4<5
so cheapest is the 22oz box be

Answer 2

$4.08/16 ounces: $0.255

$4.50/18 ounces: $0.25

$5.39/22 ounces: $0.245

The best buy would be $4.50 for an 18-ounce box of cereal.