Answer:
-4x+5
Step-by-step explanation:
use FOIL
During the 600 mile trip Dixon used 20 gallons of gas you get this buy dividing 600 miles by 30 miles per gallon and you get 20 gallons hope this helps
Answer:
B
Step-by-step explanation:
I took the test and got it right
Let x = Class A
Let y = Class B
Let z = Class C
Equations from problem:
x - 160 = y
2/3x = z
y + 92 = z
Solving through substitution:
2/3x = y + 92
2/3x = (x - 160) + 92
2/3x = x - 68
-1/3x = -68
3(-1/3x) = 3(-68)
-x = -204
x = 204
Now substitute x in the first equation to get y:
204 - 160 = y
44 = y
44 = Class B
There are 44 folded paper cranes in Class B.
