Answer:78.75
Step-by-step explanation:21 percent of 4500 945 divided my 12 which is 78.75
Answer:
xy=1.5
-7x=1.75
x+2y=-12.25
(1/3)y=-2
Step-by-step explanation:
To find the variable x, set the two outside equations equal to each other because all sides are equal
x+13=3x+3
13=2x+3
10=2x
x=5
then to find h, you set the equation equal to 90 because that's how many degrees it is
2h-45=90
2h=135
h=67.5
15 would be the correct answer divide 60 by 4
false it not true a system of equation only have one soulotion