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3 years ago

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Carl went to the store to buy items for his party.He bought two packs for plates for $3.24 and a pack of cups for $5.70. He also

bought a pack of forks for $6.17. If Carl paid with two $10 bills ,how much change did he get back

1 answer:

Andre45 [30]3 years ago

7 0

3.24 + 5.70 + 6.17 = 15.11

20.00 - 15.11 = 5.11

He got 5.11$ of change back.

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meriva

Answer:

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(2, 3)

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2x + 5y = 19

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3 years ago

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<em><u>Solution:</u></em>

Given equation is:

$-4x^2 + 40x + 16 = 0$

To find: solve by quadratic equation formula

$\text {For a quadratic equation } a x^{2}+b x+c=0, \text { where } a \neq 0\\\\x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Using the above formula,

$\text{ For} -4x^2 + 40x + 16 = 0 \text{ we have } a = -4 ; b = 40 ; c = 16$

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Thus the solution to given quadratic equation is x = - 0.3851 or x = 10.3851

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2 years ago

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