Question

Combined, Natalie and Ellie sold 90 boxes of Girl Scout cookies. If Natalie sold one-third of this, find the ratio of the boxes of cookies that Natalie sold to the number of boxes that Ellie sold.

Answer 1

they sold a total of 90 boxes

Natalie sold 1/3 of this......1/3 * 90 = 90/3 = 30....so Natalie sold 30.
that leaves (90 - 30) = 60.....Ellie sold 60

ratio of Natalie to Ellie is : 30/60 which reduces to 1/2.
so the ratio is : 1/2 or 1:2 or 1 to 2 <==

Answer 2

Combined, Natalie and Ellie sold 90 boxes of Girl Scout cookies. If Natalie sold one-third of this, find the ratio of the boxes of cookies that Natalie sold to the number of boxes that Ellie sold.

Let Natalie = n, Ellie = e

n + e = 90

90/3 = n

n = 30

30 + e = 90

e + 30 (-30) = 90 (-30)

e = 60

Natalie sold 30, Ellie sold 60

30:60 simplified = 1:2

For every one Natalie sells, Ellie sells 2

hope this helps