<img src="https://tex.z-dn.net/?f=%28%20-%203%29%20%7B%7D%5E%7B2%7D%20.%28%20-%203%29%20%20%7B%7D%5E%7B2%7D%20" id="TexFormula1"

2 years ago

title="( - 3) {}^{2} .( - 3) {}^{2} " alt="( - 3) {}^{2} .( - 3) {}^{2} " align="absmiddle" class="latex-formula">
plz tell me the answer

Mathematics

1 answer:

liq [111]2 years ago

4 0

The answer is 81. since (-3)^2 is 9. Therefore, 9x9=81.

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Explain your answer !! <br> Have a nice day <br><br> Will give braisnlt

lora16 [44]

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The equations are:

$4H + 3P = 13.75$

$2H + 5P = 11.25$

$Hotdog = 2.50$

$Pretzel = 1.25$

Step-by-step explanation:

Let:

$H = hot\ dog$

$P =Pretzel$

For Tina:

$4H + 3P = 13.75$

For Doug:

$2H + 5P = 11.25$

Solving for the price of both items:

We have:

$4H + 3P = 13.75$ --- (1)

$2H + 5P = 11.25$ --- (2)

Multiply (2) by 2

2 * ( $2H + 5P = 11.25$ )

-------------------

$4H + 10P = 22.50$ --- (3)

Subtract (3) from (1)

$4H + 3P = 13.75$

$4H + 10P = 22.50$

----------------------

$4H - 4H + 3P - 10P = 13.75 - 22.50$

$3P - 10P = 13.75 - 22.50$

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Solve for P

$P = \frac{-8.75}{-7}$

$P = 1.25$

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$2H + 5 * 1.25 = 11.25$

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Collect Like Terms

$2H = 11.25-6.25$

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Solve for H

$H = \frac{5}{2}$

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