Cost of Lightbulb = x
cost of switch is x-8
9x + 4(x-8) = 520.50
Use distributive property:
9x + 4x -32 = 520.50
Simplify:
13x -32 = 520.50
Add 32 to both sides:
13x = 552.50
Divide both sides by 13
X = 42.50
A lightbulb costs $42.50
A switch costs 42.50-8 = $34.50
3(4x - 4) - 7x, when simplified, is 5x - 12. So your answer would be A, or the first one.
Answer:
x equals 30
Step-by-step explanation:
An equilateral triangle adds up to a total of 180 degrees so divided 60 into two and you get 30
Answer:
b c d
Step-by-step explanation:
hope this helps you understand
