An electrician sent Bonnie an invoice in the amount of A dollars for 6 hours of work that was done on Saturday. The electrician charged a weekend fee F in addition to an hourly rate R. Bonnie knows what the weekend fees is. Write a formula Bonnie can use to find R, the rate the electrician charges her per hour (the capital A, F & R are varibles)

Question

Mathematics

Jamarcus Palmer

17 July, 07:06

An electrician sent Bonnie an invoice in the amount of A dollars for 6 hours of work that was done on Saturday. The electrician charged a weekend fee F in addition to an hourly rate R. Bonnie knows what the weekend fees is. Write a formula Bonnie can use to find R, the rate the electrician charges her per hour (the capital A, F & R are varibles)

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Answers (2)

Know the Answer?

Valerie Wolf · Answer 1

A = weekend fee (for 6 hours of work)

F = flat fee for work done on weekend

R = hourly rate on weekend

A = 6R + F

solve for R

* subtract F from both sides, then divide through by 6

R = (A - F) / 6

Charlie Sawyer · Answer 2

The total-A+F, then whatever is left/6, because the total minus the invoice and weekend fee would leave only the hourly rate and so with 6 hours of work you divide by 6 for R