F(x) = x - 0.15x
sale = original - 0.15(original)
y = 0.85x
In line one she forgot to multiply 4 on the left side by -1
320=30+15s
290=15s
S=19.33
S=19
19 student tickets.
Answer:
C. (16y + 7z)
Step-by-step explanation:
9y + 11z + 7y - 4z
1. Simplify the y's: 9y + 7y = 16y
16y + 11z - 4z
2. Simplify the x's: 11z - 4z = 7z
16y + 7z
Answer:
2/5 m - 1/5
Step-by-step explanation:
2 ( 1/5 m - 2/5) + 3/5
Distribute
2/5 m - 4/5 + 3/5
Combine like terms
2/5 m - 1/5