They have $150.25 left over
(just do 25 times 6.50 then minus 12.25)
Hello BusyBunny, this is quite simple. All you would need to do is multiply .10 or 10% * $3.49 which will give you a 10% discount.
Simplify the second equation.
1/2y = -x + 1
Multiply both sides by 2
y = -2x + 2
Since both equations equal y you can set them equal to each other.
-2x + 2 = 3x - 1
Solve for X
-5x = -3
x = 3/5
Plug this into one of the equations.
3(3/5) - 1 = y
1.8 - 1 = y
y = .8
(0.6, 0.8)
Answer:
b
Step-by-step explanation:
The answer is 3 cm. You just have to add the sides you know (6 and 8) and subtract that from the perimeter (18)