A. How many gallons will be in the tank after 7 minutes? 2. A 450-gallon tank full of water is draining at a rate of 20 gallons per minute.
c. Write an equation that represents the relationship between the gallons of water
d. Graph your equation using graphing technology. Mark the points on the graph
that represent the gallons after 7 minutes and the time when the tank has 200
in the tank and minutes the tank has been draining.
b. How long will it take for the tank to have 200 gallons?
gallons. Write down the coordinates.
e. How long will it take until the tank is empty?

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%