Lisa's car averageed 15 miles per gallon of gasoline. After a tune up she noticed she was getting 18 miles per gallon of gasoline what type of change did she see

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.

yes because they have the same amount of green and blur marbles.

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15