bryanmcmillianjr

13.09.2019 • 

Mathematics

Paolo buys a used car for $3,500 and wants to fill it up with gasoline. his gas tank holds 15 gallons and is currently empty. paolo has $100. one gas station sells gas for $2.50 per gallon. the station across the street sells gas for $2.25 per gallon. what is the cheapest cost to fill up paolo's tank?
round your answer to the nearest hundredth. leave the dollar sign off your answer, so for example if your answer is $10.25, write 10.25.

Ответ:

gugu1004

02.01.2022

Mathematics

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The one gas station that sells gas for $2.50 would be 37.50 to fill up his gas tank, but the other gas station for $2.25 is only 33.75 to fill up his tank. The second gas station would be the cheapest cost.

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Ответ:

cece4874

16.10.2020

Mathematics

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We can solve these equations by using substitution method where you substitute one equation to the other and solve for the value of the other variable. We do as follows:

y = 2x^2
y = –3x −1

 2x^2 = –3x −1
 2x^2 +3x +1 = 0

x1= -0.5
x2 = -1
y1 = 0.5
y2 = 2 

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