Problema Solution
If one group had 3 car washes, 2 bake sales and 5 dances to make $31, and the next had 5 car washes with 5 bake sales and 7 dances to make $56 and the last group had 7 car washes and 3 bake sales and 10 dances for $59 , how much was each cw, bs and d
Answer provided by our tutors
Let
x = the of one car wash
y = the cost of one bake sale
z = the cost of one dance
3x + 2y + 5z = 31
5x + 5y + 7z = 56
7x + 3y + 3z = 59
........
click here to see the system of equations solved for x, y and z
........
x = $6.62
y = $3.32
z = $0.90
The cost of one car wash is $6.62, one bake sale is $3.32 and one dance is $0.90.