Answer:
j <u>></u> 5
j > 4.5
Step-by-step explanation:
9j - 5j <u>></u> 20
4j <u>></u> 20

j <u>></u> 5
8j > -36

j > 4.5
seventeen dollarsStep-by-step explanation:
Just subsitute 8 for n
1/2(8)^2-1/2(8)
1/2(64)-4
32-4
28
D
Answer:
16 quarters
30 pennies
Step-by-step explanation:
q= quarters
p=pennies
set up a system of equations. One equation is for total value, the other is total # of coins.
q + p = 46
0.25q + 0.01p = 4.30 -> multiply this equation by 4 so you can subtract from the top equation
q + P =46
1q + 0.04p = 17.20
subtract the bottom equation from the top
0.96p = 28.8
divide by 0.96
p=30
substitute p in the top equation
q + 30 = 46
subtract 30 from both sides
q = 16
Answer:
16 lessons
Step-by-step explanation:
12 divided by .75 = 16