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Ludmilka [50]
4 years ago
6

-.5 (2x-10)+15.5=45 how do I do this??

Mathematics
1 answer:
Rainbow [258]4 years ago
7 0

Answer:

x=24.5

Step-by-step explanation:

-0.5(2x-10)+15.5=45 distribute -0.5 through the parenthesis

-x+5+15.5=45 add the numbers

-x+20.5=45 move constant to the right side and change its sign

-x=45-20.5 subtract the numbers

-x=24.5 change the signs on both sides of the equation

x=-24.5



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To find the value of x, you want to use the vertical angles theorem.

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2. You can get rid of the parentheses.

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To find the measure of TRY then plug x into the expression for TRY, which is (x+16).

TRY => ((7)+16) = 23

Since TRY is 23, the vertical angles theorem says that QRW is also 23. Add these measures up.

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A line's measure is 180 degrees, so two lines would add up to 360 degrees. Subtract 46 from 360 to find the remaining degrees.

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Answers are:

TRY = 23

TRQ = 157

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