Let's plug in what x =, y-3 into 2x+y=12
2 (y-3)+y=12
distribute 2 to both y and -3
2y-6+y=12
add all ys
3y-6=12
+6 both sides
3y=18
÷3 both sides
y=6
plug in y into x=y-3 to find x
x=6-3
x=3
Directly proportional means if x has a certain value, y should have the same value. but here in the graph, when x is 0, y has a value greater than 0. for x and y to be directly proportional, the line should go through 0.
The equation would be 15x=$60. He would have to save $90 in total to buy the expansion pass. Also the x would be 4 in the equation if you needed it
Answer:
V=28.203 yd.
Step-by-step explanation:
V= 1/3 Bh. B= 1/2(l×w) h= 7.9
V= 1/3( 10.71×7.9) B= 1/2(3.4×6.3) l=3.4
V=1/3(84.609) B= 1/2(21.42) w=6.3
V=28.203 B= 10.71
