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lara31 [8.8K]
3 years ago
15

Zoomfast Tire & Battery stores are selling new steel-belted radial tires. They promise that when these tires are used your c

ar will get 10% better gasoline mileage. If Gloria's red convertible now goes 420 miles on a tank of gasoline, how far could she drive on a tank if she switched to the new tires?
Mathematics
2 answers:
vova2212 [387]3 years ago
4 0

Answer:

462 mi

Step-by-step explanation:

Gloria gets 420 mi/tank.

10 % of 420 is

420 × 0.10 = 42 mi

She will be able to drive an extra 42 mi.

420 + 42 = 462 mi

With her new tires, a tank of gas will take her 462 mi.

tiny-mole [99]3 years ago
4 0

Answer:

462

Step-by-step explanation:

to find 10% of 420 you take

420 x .10 = 42

then add 42 to 420

420+42=462

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