10.2 x 2 = 20.40
9.4 x 3 = 28.20
Total= 48.60
Answer:
x = 15
Explanation:
First, add both equations on one side, and set it equal to 180° because it's supplementary:
2x + 8 + 8x + 22 = 180
combine like terms:
10x + 30 = 180
subtract 30 on both sides of the equation and you end up with:
10x = 150
divide both sides by 10 and you get:
x = 15
Answer:
false
Step-by-step explanation:
X squared minus 5 is not necessarily prime