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3 years ago

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Solve for x using quadratic formula x2 10x=9

1 answer:

Iteru [2.4K]3 years ago

3 0

First bring the 9 to the other side by subtracting it so you get the equation; x^2+10x-9=0 and you answer would be x=9 and x=1. you may have wrote the question own wrong? is the x^2 negative? if so i give my answer :)

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Clara has 8 coins worth 17¢. if the coins are all dimes and pennies, how many dimes and pennies does she have?

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Let x = the number of dimes
Let y = the number of pennies.

There are 8 coins, therefore
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The coins are worth 17 cents, therefore
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Subtract equation (1) from equation (2).
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From (1), obtain
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Answer:

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Answer:

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see the attached figure

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Answer:

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