Answers:
Step-by-step explanations:
If I use the gym for x hours in a month, the total cost in terms of x will be 1000 + x.
a. Monthly membership fee = $100
Additional amount charged = $1 per hour.
If I use the gym for x hours in a month, the total cost in terms of x will be:
= 1000 + 1(x)
= 1000 + x
b. Also, if the amount charged is $35 per month and $3.50 per hour, the total cost will be:
= 35 + 3.50(x)
= 35 + 3.5x
c. The number of hours that will give same cost will be:
1000 + x = 35 + 3.5x
Collect like terms.
1000 - 35 = 3.5x - x
965 = 2.5x
x = 965/2.5
x = 386
In 386 hours, the total cost will be the same.
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Answer:
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Step-by-step explanation:
the question is already substituted
Step-by-step explanation:
x(x + 7) = 0
By Zero Product rule,
either x = 0 or (x + 7) = 0.
=> x = 0 or x = -7.
Answer:
8.79 + .67 = 9.46 total tax
Step-by-step explanation:
97.62 + 22.95 + 14.78 = 135.35
135.35 * .065 = 8.79 state
135.35 * .005 = .67 county
8.79 + .67 = 9.46 total tax
