All together they spend $87.00
A statement also know as an axiom which is taken to be true without proof.
-7x-5y=-47x+9y=-4
combine like terms to cross out the 7x
solve for y, to get -2
plug it back in to one of the equations and x is 2
y=-2
x=2
Answer:
3/4 cup
Step-by-step explanation:
12 divided by 2 is 6
18 - 12 = 6
we are going to need half of 1 1/2 cup of flour
1 cup = 1/2
1/2 cup = 1/4
1/2 and 1/4 cup = 3/4 cup
