The answer is d.
to find the slope you can do y2-y1/x2-x1
8-(-1)/3-0= 9/3 or 3
you can then put one of the points into the slope intercept form y=mx+b or 8=3(3)+b
you get 8=9+b. you subtract 9 from both sides to get -1=b. y intercept means that the point is (0,-1)
Equation changes to 4x+(8 x .8)= 40. changes to 4x+6.4=40. subtract 6.4 from fourty, and you get 33.6. then you divide 33.6 by 4 and you get 8.4
x=4
Answer:
you answer will be a binary number
Answer:
- first car: 25 mpg
- second car: 15 mpg
Step-by-step explanation:
Let x represent the fuel efficiency of the car that used the most gas. Since the sum of the fuel efficiencies is 40 mpg, the other car had a fuel efficiency of (40-x). Then the combined miles driven is ...
40x +25(40-x) = 1225
15x = 225
x = 15
(40-x) = 25
The first car got 25 miles per gallon; the second car got 15 miles per gallon.
_____
We made use of the relation ...
gallons × (miles/gallon) = miles
Answer:
You will need to use it.
Step-by-step explanation:
That's what it wants