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densk [106]
3 years ago
11

???????!!!!!!!!???????????????

Mathematics
2 answers:
jolli1 [7]3 years ago
8 0

Answer:

They would need 15.3 gallons.

Step-by-step explanation:

In order to solve this, we use a proportion. The left side will have the original rate and the right side will have the unknown.

420m/18gal = 357m/xgal

Now cross multiply to solve.

420 * x = 18 * 357

420x = 6426

x = 15.3

Iteru [2.4K]3 years ago
8 0

Answer:

15 gallons

Step-by-step explanation:

If you divide 420 miles by the 18 gallons, then you get 23.333333... meaning 23.3 miles per gallon. you than take 357 divided by 23.3

420/18=23.3

357/23.3=15.300.....

I hope this helps!

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