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Find hour rate for 7 hours:
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Hourly charge = $3
Hourly charges for 7 hours = 3 x 7 = $21
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Find fixed charge :
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$33-21 = $12
There is a $12 fixed rental charge.
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Form Equation:
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Let the number of hours be x.
Total cost = 12 + 3x
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Answer: Total cost = 12+ 3x
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Answer:
x=−414
Step-by-step explanation:
Let's solve your equation step-by-step.
x
−18
=23
Step 1: Multiply both sides by -18.
x
−18
=23
(
x
−18
)*(−18)=(23)*(−18)
x=−414
The answer to number 13) x-4
Answer: $0.42
Step-by-step explanation:
The rate at which the average cost of 1 gallon of gasoline is increasing is exponential. We would apply the formula for exponential growth which is expressed as
y = b(1 + r)^ t
Where
y represents the cost after t years.
t represents the number of years.
b represents the initial cost.
r represents rate of growth.
From the information given,
b = $0.31
r = 3% = 3/100 = 0.03
t = 1972 - 1962 = 10 years
Therefore,
y = 0.31(1 + 0.03)^10
y = 0.31(1.03)^10
y = $0.42
Answer:
30
Step-by-step explanation:
tan(?)=17/29. ?=30 degrees