Problema Solution
Sumalee and James each improved their yards by planting grass sod and geraniums. They bought their supplies from the same store. Sumalee spent $122 on 5ft^2 of grass sod and 6 geraniums. James spent $110 on 5ft^2 of grass and 5 geraniums. Find the cost of one ft^2 of grass sod and the cost of one geranium.
Answer provided by our tutors
Let
x = the price of 1ft^2 grass
y = the price of 1 geranium
Sumalee spent 5*x + 6*y = 122
James spent 5*x + 5*y = 110
By solving the system of equations
5*x + 6*y = 122
5*x + 5*y = 110
we find
x = $10
y = $12
The cost of one ft^2 grass is $10 and the cost of one geranium is $12.