Answer:
10
Step-by-step explanation:
<em>10 + 10 = 2x</em>
<em>2x = 20</em>
<em>10 + 10 = 20</em>
<em>x = 10</em>
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you'll get a decimal format, just multiply it times 100, to get the % format
Answer:
D
Step-by-step explanation:
Using the cosine ratio in the right triangle.
cos66° =
=
( multiply both sides by x )
x × cos66° = 13 ( divide both sides by cos66° )
x =
≈ 32.0 ( to the nearest tenth )
Answer:6
Step-by-step explanation:
-7=s+(-13)
Open bracket
-7=s-13
Collect like terms
s=-7+13
s=6