Answer:
box of standard strawberries = 80
box of deluxe strawberries = 55
Explanation:
Given data:
A box of standard strawberries sells for $7
a box of deluxe strawberries sells for $10.
Total number of sells 135 boxes
total revenue of $1110.
Let box of standard strawberries be x
Let box of deluxe strawberries be y
x + y = 135 (equation 1)
7x + 10y = 1110 (equation 2)
These are now simultaneous equations
From equation 1
y = 135-x (equation 3)
Substituting equation 3 into equation 2
7x + 10(135-x) = 1110
7x + 1350 - 10x = 1110
7x -10x = 1110-1350
-3x = -240
x = 80
Substituting x into equation 3
y = 135 - x
y = 135 -80
y= 55