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
Answer:
Sales tax: $352.50
Final Cost: $5052.50
Step-by-step explanation:
Answer:
15400
Step-by-step explanation:
Answer:
x = 20 1/4
Step-by-step explanation:
1/4 (4x + 15) = 24
x + 3 3/4 = 24
x = 20 1/4
Answer:
14
Step-by-step explanation:
3 + 2 + (5 - 1) + 5
Always solve the ones inside the parentheses first.
3 + 2 + (4) + 5
5 + 4 + 5
9 + 5
= 14
