Question

To use a vacuum cleaner at a car wash, customers must pay an initial $3.00 and $0.25 for each 15 min interval.

Which table shows how much it costs to use the vacuum cleaner for different amounts of time?

A.
Vacuum Cleaner Costs
15 min intervals 3 5 7 9
Cost $0.75 $1.25 $1.75 $2.25


B.
Vacuum Cleaner Costs
15 min intervals 3 5 7 9
Cost $3.75 $4.25 $4.75 $5.25


C.
Vacuum Cleaner Costs
15 min intervals 3 5 7 9
Cost $14.25 $20.50 $29.25 $36.75


D.
Vacuum Cleaner Costs
15 min intervals 3 5 7 9
Cost $15.75 $16.25 $16.75 $17.25

Answer 1

@iGreen @misty1212 @Nibby @nincompoop

Answer 2

To find your answer, take the initial cost of $3.00, and then create an equation to find out how much a 3, 5, 7, and 9 15 minute interval would be.
I know that sounds a little confusing, so let me lay it out for you:
\[$3.00 + ( 3 * $0.25 ) = ?\]
\[$3.00 + ( $0.75 ) = $3.75\]
So, since the 3 15 minute interval is $3.75, which of your answers would be correct?

Answer 3

c or d?@Nibby

Answer 4

@Nibby

Answer 5

It's actually neither C nor D. So, that only leaves A or B. Which of those two has the interval of 3 being $3.75?

Answer 6

b

Answer 7

yes your correct