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lina2011 [118]
3 years ago
8

If it takes 15 gallons of gas to drive 330 miles how many miles can be driven using 20 gallon of gas

Mathematics
1 answer:
Iteru [2.4K]3 years ago
3 0
15 / 330 = 20 / x...15 gal. to 330 miles = 20 gal to x miles
cross multiply because this is a proportion
(15)(x) = (20)(330)
15x = 6600
x = 6600/15
x = 440 <=== 20 gallons will take u 440 miles
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Multiply equation 2 by 7/16:
{7 x + 2 y = -19 | (equation 1)
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Subtract 2 × (equation 2) from equation 1:
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{x+0 y = -5 | (equation 1)
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Collect results:
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8 0
3 years ago
Alex purchased a new car for $28,000. The car's value depreciates 7.25% each year. What will be the value of the car 5 years aft
Zanzabum
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