Equations review homework
question 6 of 6
during his vacation, dalyn rents a small boat from a rental service that charges a flat fee of $50 plus $10 per hour (including taxes).
the total charge comes to $90. which equation can be used to calculate the number of hours, & , that dalyn rents the boat?
a
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d
10x + 50 = 90; 4 hours
10 (x + 50) = 90; 4 hours
50x + 10 = 90: 3 hours
30 (x + 10) = 90: 3 hours
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10x + 50 = 90; 4 hours

Step-by-step explanation:

Let

x -----> the number of hours

y ----> the total charge

we know that

The total charge is equal to the number of hours multiplied by the rate of $10 per hour plus a flat fee of $50

so

The linear equation that represent this problem is

For y=$90

substitute in the equation and solve for x

Subtract 50 both sides

Divide by 10 both sides

therefore

10x + 50 = 90; 4 hours

x is greater than 5

step-by-step explanation:

2x+7 is greater than 17

    -7                           -7

2x is greater than 10

divide by 2 each side

x is greater than 5