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bogdanovich [222]
2 years ago
15

What’s the x value of PR=9x-31 and QR=43?

Mathematics
2 answers:
True [87]2 years ago
6 0
<h3>Simplifying </h3>

9x + -31 = 43

<h3>Reorder the terms:</h3>

-31 + 9x =43

<h3>Solving</h3>

-31 + 9x =43

<h3>Solving for variable 'x' .</h3><h3>Move all terms containing x to the left, </h3>

Add '31' to each side of the equation .

0 + 31 +9x = 43 + 31

<h3>Combine like terms: </h3>

-31 + 31 =0

0 + 9x = 43 +31

9x = 43 + 31

<h3>Combine like terms:</h3>

43 + 31 =74

9x = 74

<h3>Divide each side by '9'</h3>

x = 8. 222222222

<h3>Simpifying</h3>

x = 8.222222222

Guest1 year ago
0 0

The answer is X=9.25

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What method would you choose to solve the equation 2x^2-7=9? explain why you chose this method.
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Answer:

2.87

Step-by-step explanation:

2x^2-7=9

2x^2=9+7

2x^2/2=16/2

(square root)x^2=(square root)8

x=2.87

I used this method because I don't know any other method.

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2 years ago
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Jenny paid $8.54 for pizza.she now has $16.79.with how much money did she start
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$25.33

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In the start she had $8.54 + $16.79= $25.33

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Express these numbers in standard form (a)5730(b)0.23(c)0.000231(d)7150000(e)500.8
alisha [4.7K]

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8 0
2 years ago
5. Heathcliff found a road map showing the driving route to a resort that he knows Gertrude enjoys. The map shows a roadway, sta
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A baker determined the annual profit in dollars from selling pies using p n( ) = 52n − 0.05n2 , where n is the number of pies so
miss Akunina [59]

Answer:

<u>The annual profit if the baker sells 400 pies would be US$ 12,800</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Annual profit in dollars from selling pies using p n( ) = 52n − 0.05n² , where n is the number of pies sold

Annual sales of the baker = 400 pies

2. Let's solve p for 400 pies

p n( ) = 52n − 0.05n²

p (n₄₀₀) = 52 * 400 − 0.05 * 400²

p (n₄₀₀) = 20,800 − 0.05 * 160,000

p (n₄₀₀) = 20,800 − 8,000

p (n₄₀₀) = 12,800

<u>The annual profit if the baker sells 400 pies would be US$ 12,800</u>

Note: Same answer to question 14179960, answered by me today.

3 0
2 years ago
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