Answer:
f(-2)= -2x+5 = 9
Step-by-step explanation:
Substitute the given value into the function and evalute.
4/3.2 = 7/x
4x = 22.4
/4
x = 5.6
Answer:
6(2 + 2/3x) = 12 + 4x
Step-by-step explanation:
...............
Answer:
Addition property
Adding 5 to the each side makes it
x -5 + 5 = 15 +5
x = 20
Let d be dimes. Then quarters would be d+4; and nickels would be 4(d+4). Then:
.05(4d+16)+.1d+.25(d+4)=7.3
.2d+.8+.1d+.25d+1=7.3
.55d=5.5
d=10
Plug d=10 to get quarters and nickels. ☺☺☺☺
