4 years ago

Tyler used 17.04 gallons of gas.Maria used 6.2 times as many gallons of gas as Tyler. How many gallons of gas did Maria use?

Mathematics

1 answer:

timurjin [86]4 years ago

4 0

105.648 gallons is your answer

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y ----> Paolo's age

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Solve the quadratic equation

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

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$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^2+8x-105=0$

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substitute in the formula

$x=\frac{-8(+/-)\sqrt{8^{2}-4(1)(-105)}} {2(1)}$

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