28 + 29 + 42 = 28 + 42 + 29 = 99
Commutative property: a + b = b + a
For this case, the first thing we must do is define variables:
x: number of pillowcases
y: number of sheets
We now write the system of equations:
2x + 5y = 40
x = 2y
Solving the system we have:
x = 8.9
y = 4.4
Answer:
The maximum number of pillowcases she could have purchased is:
x = 8 (spent less than $ 40)
Is there a picture? there's not enough info
Answer:
72178.4777
Step-by-step explanation:
