During his vacation, Dalyn rents a small boat from a rental service that charges a flat fee of $30 plus $10 per hour (including taxes). The total charge comes to $90. Which equation can be used to calculate the number of hours, x, that Dalyn rents the boat?

In order to find out the number of hours that Dalyn used the boat, you can use the formula, 30 + 10x = 90.

Dalyn rented the boat for $30 and then an additional $10 for every hour which brought his total cost to $90.

Assuming that the hours he used the boat was x, the expression would be:

Total cost = Flat fee + (Amount per hour x Number of hours used)

90 = 30 + (10 × x)

30 + 10x = 90

If you solve this equation, the number of hours would be:

30 + 10x = 90

10x = 90 - 30

x = 60/10

x = 6 hours

In conclusion, you can use the formula, 30 + 10x = 90, to find the number of hours rented.

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He rents the boat for 6 hours

Step-by-step explanation:

10x + 30 = 90

10x = 60

x = 6

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation: