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Evgen [1.6K]
2 years ago
14

What is the value of x? What is the measure of angle QOR? What is the measure of angle ROS?

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
4 0

Answer:

x = 26

angle QOR = 31

angle ROS = 59

Step-by-step explanation:

(x + 5) + (2x + 7)  = 90\\ 2x + x + 5 + 7  = 90 \\ 3x + 12  = 90 \\ 3x  = 90 - 12 \\ 3x = 78 \\ x = 78 \div 3 \\ x = 26

Sub x in

(x + 5) \\ 26 + 5 = 31

and

(2 \times 26 + 7) \\  = 52 + 7 \\  = 59

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Part A: $60

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2 years ago
Jaz was 43 inches tall. Eighteen months later, she was 52 inches tall. The constant rate of change for Jaz's height was .
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Answer:

Constant rate of change for Jaz height will be 0.5 inch per month

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7 0
3 years ago
If x = 3, calculate the value of: x3 - x
Sergeeva-Olga [200]
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8 0
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The sum of two numbers is 98. their difference is 22. write a system of equations that describes this situation. solve by elimin
larisa [96]
Y+x=98
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I'm going to use elimination. 

y+x=98
y-x=22
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6 0
3 years ago
Find the value of x
Novay_Z [31]

Answer:

<em>x=3</em>

Step-by-step explanation:

<u>Angles and Lines</u>

We must recall:

  • The sum of the internal angles of a triangle is 180°
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The image shows a triangle and the extension of its base to form two linear angles.

Note from the triangle, angle R is what it takes to get to 180°:

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From the line SQ, angle R what it takes to get to 180°. Thus:

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180-25x-(57+x)=180-45x

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4 0
2 years ago
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