30 miles for a single gallon.
first we find out how many gallons would be used.
number of gallons = 1020/30
gallons = 34.
and since 1 gallon costs $4.06
34 gallons would cost = 34 x 4.06 = $138.04
Answer:
75 general
105 student ID
Step-by-step explanation:
(it's a system)
4x+3y=615
x+y=180
(system as well)
4x+3y=615
x=180-y
4(180-y)+3y=615
720-4y+3y=615
-y=-105
y=105
x+105=180
x=180-105
x=75
Plug h = 3 and g = 27 into the expression:
The equation of the circle is determined that you are in the wrong type and the same name you can say to you get your
first speed --- x mph
return speed -- x+16 mph
6/x + 6/(x+16) = 1
times each term by x(x+16)
6(x+16) + 6x = x(x+16)
x^2 + 4x - 96 = 0
(x-8)(x+12) = 0
x = 8 or x is a negative
her first speed was 8 mph
her return speed was 24 mph
check:
6/8 + 6/24 = 1 , that's good!
