4(-5y) + 2y = 180
-20y + 2y = 180
-18y = 180
y = -10
x = 50
4.16 10^8
Hope this helps *smiles*
Answer:
4x + 8y = 17
Solve for y.
You want to get y on one side of the equal sign by itself so... you subtract 4x from both sides to get:
8y = -4x + 17
Then you divide both sides by 8 to get:
y= -4x/8 +17/8
Then simplify the fractions to get:
y = -2x/4 + 17/8
Step-by-step explanation:
The first car consumed 21 gallons while the second car consumed 49 gallons. here is the how it's done.
for the first car gallons consumed is 15/50x70= 21 gallons
the second car consumed 35/50x70=49 gallons
A, C, and E.
you can check them by putting into y=mx+b form. if m is negative then as domain increases range decreases.
