IXL | Compare rates: word problems

Jason and his twin brother, Seth, are painting the walls in their bedroom. It took Jason 50 minutes to paint a 160-square-foot wall. It took Seth 30 minutes to paint a 120-square-foot wall. Who painted faster?

Jason

Seth

ref_doc_title.

Learn with an example

question

Ryan is buying batteries for his remote control cars. Charge Zone batteries cost

15.80

for 20 batteries. Electrocell batteries cost

8.10

for 10 batteries. If both brands of batteries last equally long, which brand is the better value?

Charge Zone

Electrocell

solution

To find which brand is the better value, compare their unit prices. See which brand has a lower price per battery.

Charge Zone batteries cost

15.80

for 20 batteries. Find the unit price.

15.80

0.79

Electrocell batteries cost

8.10

for 10 batteries. Find the unit price.

8.10

0.81

0.79

per battery is less than

0.81

per battery. So, Charge Zone batteries are the better value.

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$Confetti$

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Teacher tools

Work it out

Not feeling ready yet? These can help:

S.11Unit rates

I.5Divide decimals by whole numbers

H.1Add and subtract decimal numbers

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