To answer this item, we let the number of small, medium, and large popcorns sold be equal to x, y, and z such that the total amount that can be obtained from the sales is,
2x + 3y + 4z = total sales
If the 9p is the total number of popcorns sold, the equation is,
x + y + z = 9p
X will stand for every extra book sold
880 = 4x + 500
subtract 500 from both sides
380 = 4x
divide both sides by 4
x = 95
they sold 95 books
Answer: $26.4 Australian dollars
Y=1.2x
Answer:
X=19m
Step-by-step explanation:
A=LxW
W=A/L=225/25=9m
Rope used =perimeter
4(x-2)=2L+2W
4x-8=2x9+2x25
4x=68+8
X=76/4=19m
