Answer:
28mpg
Step-by-step explanation:
eric uses 7 gallons
drive=196 miles
196miles ÷ 7 gallons = 28mpg
eric can drive 28 miles using 1 gallon of gas
Answer:
125
Step-by-step explanation:
that would be , by proportion. 5 * 800 / 32
= 125 students
Answer:
y = 2x−2
Step-by-step explanation:
You are given a slope and a point, so you can write the equation using point-slope form:
y -k = m(x -h) . . . . . . a line with slope m through point (h, k)
Putting in the numbers given, you have ...
y -6 = 2(x -4)
y = 2x -8 +6 . . . . eliminate parentheses, add 6
y = 2x -2 . . . . . . . collect terms.
__
You know that the slope is the coefficient of x, so the first choice is eliminated right away. Trying the point values in the other equations shows you that they only work for the last choice, as shown above.
- 2·4 +14 = 22 ≠ 6 . . . . second choice doesn't work
- 2·4 +6 = 14 ≠ 6 . . . . . third choice doesn't work
- 2·4 -2 = 6 . . . . . . y = 2x-2 is the equation that works
Answer:
1st blank: Variable
2nd blank: one
Step-by-step explanation:
It should be:
To solve an equation, you must apply the variable to one side of the equation.
This makes sense to me, but I'm not 100% positive.
Answer:b=-10.5, a=31.5
Step-by-step explanation: 3b=-a , -3b=a
a+b =21
-3b+b = 21
-2b=21
b=-10.5
a=-3b
a=-3*-10.5=31.5
