Answer:
y= -3.5x+57.5.
Step-by-step explanation:
Answer:
72 books will fit on the shelf
X - 2y= 14
x - 3y= - 11 | * ( -1)
x - 2y = 14
-x + 3y= 11
----------------
/ y= 25
x - 2*25= 14
x - 50 =14
x= 14+50
x=64
Answer:
a ≤ b + 5
a + b ≥ 40
2.5
a + 1.5
b ≤ 105
Step-by-step explanation:
3 sisters bought 2 x 3 = 6 dress and and 1 x 3 = 3 purses.
3 sisters bought 6 dresses and and 3 purses.
Find 3 purses:
1 purse = $26
3 purses = $26 x 3 = $78
Find 6 dresses:
Total = $205.50
6 dresses = $205.5 - $78
6 dresses = $127.50
Find 1 dress:
6 dresses = $127.50
6 dresses = $127.50 ÷ 6
1 dress = $21.25
Answer: $21.25