I'm guessing D, but no so sure.
Answer:
y=1
x=7/4
Step-by-step explanation:
4x + 5y = 12
3x + 4y = 9.25
4x + 5y = 12
12x + 16y =37
-12x -15 y =-36
12x + 16y =37
y=1
x=7/4
Answer:
This is not a solvable question, since the least amount of money you can have with this combination is $4.20.
Step-by-step explanation:
Let q = quarters
Let d = dimes
Equation: 0.1d + 0.25q = 3.00
Maximum amount of dimes: 0.1d *42 = 4.2d
Root root 20^2 - 4^2
X = 2
The total change in her bank account would be $160,
if you multiply 8x$20 you get $160
