Question

Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she sold 6 fewer books than she did on Tuesday. During the three days Rachel sold 19 books. Create an equation that can be used to find m, the number of books Rachel sold on Monday.Equation: __________ a0-___________ a1 =___________ a2

Answer 1

Let the number of books sold on Monday be m

Monday = m

She sold twice as many on Tuesday than on Monday

Tuesday = 2m

She sold 6 fewer books than on Tuesday:

Wednesday = 2m - 6

Form equation:

m + 2m + 2m - 6 = 19

5m - 6 = 19

Solve for m:

5m - 6 = 19

5m = 25

m = 5

Find the number of books sold each day:

Monday = m = 5

Tuesday = 2m = 2(5) = 10

Wednesday = 2(5) - 6 = 4

Answer: Monday 5 books, Tuesday 10 books, Wednesday 4 books