Answer: After 5 hours, Mary will be at the break even point.
To answer this question, we need to find the time when the cost equals the revenue.
Therefore, set our equations equal to each other and solve.
20 + 30h = 10h^2 - 80
0 = 10h^2 - 30h - 100
0 = h^2 - 3h - 10
0 = (h - 5)(h + 2)
Our solutions are h = 5 or h = -2. Only 5 hours makes sense in the context of this problem.
Answer:
65
Step-by-step explanation:
not that hard bro
Euclidean space, the sum of measures of these three angles of any triangle is invariably equal to the straight angle, also expressed as 180 degress
Answer: The number of units sold when the manufactures home income equals the manufactures expenses
Step-by-step explanation:
