Problema Solution
The 7th and 8th grade classes sold 182 boxes of cookies for a fundraiser. The 8th grade class sold 22 less than 3 times number the 7th grade class sold. How many boxes did the 7th grade class sell
Answer provided by our tutors
let
x = the number of boxes 7th grade sold
y = the number of boxes 8th grade sold
they sold total of 182 boxes
x + y = 182
the 8th grade class sold 22 less than 3 times number the 7th grade class sold
y = 3x - 22
by solving the system of equations
x + y = 182
y = 3x - 22
we find
x = 51 boxes
y = 131 boxes
click here to see the step by step solution of the system of equations
the 7th grade sold 51 boxes.