zorah, a musician, pays $120 to have her instrument tuned and $10 per hour for a booth at a fair. she…

zorah, a musician, pays $120 to have her instrument tuned and $10 per hour for a booth at a fair. she estimates that she earns $25 per hour in tips. the equation can be used to represent the break - even point. 120 + 10x = 25x how many hours, x, will zorah have to play in order to break even? o 4 o 5 o 8 o 12
Answer
Explanation:
Step1: Rearrange the equation
Subtract $10x$ from both sides of $120 + 10x=25x$. We get $120=25x - 10x$.
Step2: Simplify the right - hand side
$25x-10x = 15x$, so the equation becomes $120 = 15x$.
Step3: Solve for $x$
Divide both sides of the equation $120 = 15x$ by 15. So $x=\frac{120}{15}=8$.
Answer:
C. 8