Answer:
Step-by-step explanation:
Let x = # of 25-cent stamps
y = # of 2-cent stamps
{ x+ y = 88
{ 0.25x + 0.02y = 15.56
60 25-cent stamps 28 2-cent stamps
Answer:
12
Step-by-step explanation:
Answer:
He would save $19.20.
Step-by-step explanation:
30% = 0.3
64*0.3 = 19.2
There he saves $19.20 on the coat.
To solve for x
bx=-7
divide b on both sides
x=-7/b
to solve for b
bx=-7
divide x on both sides
b=-7/x
