Answer:
Answer D is correct
Step-by-step explanation:
<em>Twice</em><em> </em><em>a</em><em> </em><em>certain</em><em> </em><em>number</em><em> </em><em>is</em><em> </em><em>5</em><em>8</em>
<em>
</em>
<em>Four</em><em> </em><em>times</em><em> </em><em>that</em><em> </em><em>number</em><em> </em><em>will</em><em> </em><em>be</em>
<em>
</em>
Hi so this I how I got my answer hope this helps
Answer:
20°
Step-by-step explanation:
The sum of angles in a ∆ = 180°
Therefore, 
Use this expression to find the value of x, then find the measure of angle A.
Subtract 20 from both sides
Divide both sides by 20
Find measure of angle A.
Angle A is given as 
Plug in the value of x and solve
Answer:
m = -18
Step-by-step explanation:
<u>Step 1: Combine like terms</u>
-8 = -m + 2m + 10
-8 = m + 10
<u>Step 2: Subtract 10 from both sides</u>
-8 - 10 = m + 10 - 10
-18 = m
Answer: m = -18
X= your age
400-2x=244
-2x=-156
x=78
you are 78 years old
