Answer:
- Reduction of Gasoline Consumption
- Increase in Miles Per Gallon by 3.
Step-by-step explanation:
Previous Rate of Gasoline Consumption = 15 miles per gallon
Rate of Gasoline consumption after Tune Up = 18 miles per gallon
The difference in Gasoline Consumption = 18-15 =3 miles per gallon
Since the difference is positive, Lisa noticed she got 3 extra miles for every gallon of gasoline. That is, her gasoline consumption reduced.
-4 (-5x+4w-1)
Multiply -4 by everything in the parenthesis:-4 * -5w = 20w
-4 * 4w = -16w
-4 * -1 = 4
20w - 16w + 4
And if you need it more simplified:
4w + 4
16.)area of parallelogram = base x height
= 9 x 13
=117in squared
17.)
<h3>
Answer:</h3><h2> -3x + y = 12</h2><h2> -2x + 4y = 18 </h2>
Step-by-step explanation:
first equation of new system would be the same as first one given:
<u>-3x + y = 12</u>
<u />
-3x+y + x+3y = -3x + x + y + 3y = -2x + 4y
12 + 6 = 18
so the second equation would be: <u>-2x + 4y = 18</u>