Step-by-step explanation:
<h2>
<em><u>3</u></em><em><u>x</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em><em><u>≤</u></em><em><u> </u></em><em><u>3</u></em><em><u>0</u></em><em><u> </u></em></h2><h2>
<em><u>3</u></em><em><u>x</u></em><em><u> </u></em><em><u>≤</u></em><em><u> </u></em><em><u>3</u></em><em><u>0</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>1</u></em><em><u>0</u></em><em><u> </u></em></h2><h2>
<em><u>3</u></em><em><u>x</u></em><em><u> </u></em><em><u>≤</u></em><em><u> </u></em><em><u>2</u></em><em><u>0</u></em></h2><h2>
<em><u>x </u></em><em><u>≤</u></em><em><u> </u></em><em><u>2</u></em><em><u>0</u></em><em><u>/</u></em><em><u>3</u></em></h2>
Since you have a angle number of 23 and you see the tiny square that means it’s equal to 90 up top and add 23 and 90 together and then subtract that by 180 to get all 3 angles in the triangle and then just use that to find the other line that’s 180.
Answer:
7. x = 3
Step-by-step explanation:
To find the value of x, use the triangle sum property. Every triangle has interior angles which add to 180 degrees. To solve, add the expressions and numbers together then set equal to 180. Then use inverse operations to solve for x.
7. 20x - 9 + 10x + 9 + 90 = 180 Subtract 90 from both sides.
20x - 9 + 10x + 9 = 90 Add -9 + 9 = 0
20x + 10x = 90 Add like terms 20x + 10x = 30x
30x = 90 Divide both sides by 30.
x = 3
Repeat this process for each problem.
