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Bond [772]
3 years ago
11

Suppose Q is the midpoint of PR. Use the information to find the missing value. PR = 9x-31 and QR = 43, find x?

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
8 0

Answer:

x = 13

Step-by-step explanation:

since Q is the midpoint of PR and QR is 43, then

PR = QR * 2 ⇒ 43 * 2 = 86

PR = 9x - 31

⇒ 9x - 31 = 86

⇒ 9x = 86 + 31

⇒ 9x = 117

Divide both sides by 9 ⇒ \frac{9x}{9} = \frac{117}{9}

⇒ <u>x = 13</u>

alex41 [277]3 years ago
5 0

Answer:

x=13

Step-by-step explanation:

Q is the midpoint of PR

PQ + QR = PR

PQ= QR

PQ+QR = PR

QF + QR = PR

2QR = PR

2*43 = 9x-31

86 = 9x-31

Add 31 to each side

86+31 = 9x-31+31

117 = 9x

Divide each side by 9

117/9 = 9x/9

13 =x

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MissTica

Answer:

(x-4)² + (y+3)² = 9

Step-by-step explanation:

The equation of a circle of radius r centered at (h, k) is ...

... (x-h)² + (y-k)² = r²

Subsituting your given values gives ...

... (x -4)² +(y -(-3))² = 3²

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What would happen if a proton were added to the nucleus of the atom? (Check all
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Answer:

A. It would become a different atom.

C. Its charge would increase by 1

Step-by-step explanation:

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3 years ago
Which is the solution to the inequality y+15 &lt;3?
Paraphin [41]

To solve an equation or inequality, you can add the same value to both sides of the expression. Here, it is convenient to choose that value to be the opposite of the constant (+15) added to y, so that constant is replaced by zero.


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In a business, if A can earn $7500 in 2.5 years, find the unit rate of his earning per month
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5 0
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Read 2 more answers
M<br> (2y+19)<br> (5x+20)<br> n<br> (4x-11)
AleksandrR [38]

Answer:

(5x+20)+(4x-11)=180(linear pair)

9x+9=180

9x=180-9

9x=171

x=171/9

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now,

(2y+19)+(5x+20)=180(co-interior angle)

2y+19+5×19+20=180

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2y=180

y=180/2

y=90

7 0
2 years ago
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