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2 years ago

14

If 8.5 gallons of gas cost $18.02, how much would 3.5 gallons cost?

1 answer:

Kisachek [45]2 years ago

4 0

I believe the answer $7.42. You have to divide 18.02 by 8.5 to get the cost per gallon. Then multiply the cost per gallon by 3.5 to get your answer

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VladimirAG [237]

Answer:

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2 years ago

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2 years ago

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Damm [24]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Use the Quadratic Formula to find the exact solutions of x2 + 7x - 4 = 0.

sladkih [1.3K]

Answer:

The solution of equation $x^2+7x-4=0$ is 0.53,-7.53.

Step-by-step explanation:

Given : Quadratic equation $x^2+7x-4=0$

To find : The solution of equation ?

Solution :

The solution of the quadratic equation $ax^2+bx+c=0$ is $x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Here, a=1, b=7 and c=-4.

Substitute the values,

$x=\frac{-7\pm\sqrt{7^2-4(1)(-4)}}{2(1)}$

$x=\frac{-7\pm\sqrt{65}}{2}$

$x=\frac{-7+\sqrt{65}}{2},\frac{-7-\sqrt{65}}{2}$

$x=0.53,-7.53$

Therefore, the solution of equation $x^2+7x-4=0$ is 0.53,-7.53.

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2 years ago

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Verizon [17]

Answer:8 and 4. Explanation: Let the 2 numbers be x and y with x > y. ⇒x+y=12→(1)←sum of 2 numbers. ⇒x−y=4→(2)← difference of numbers.

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2 years ago

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