You use $90 worth of paint for a school float

We are given equation 18x +15y =90.

Where x is the number of gallons of blue paint and y is the number of gallons of white paint.

We need to graph the equation.

In order to graph the linear equation, we to find some points on the graph.

Let us plug x=0 and find value of y.

Plugging x=0 , we get

18(0)  +15y =90

0 +15y =90.

15y =90.

Dividing both sides by 15, we get.

y=6.

We got first coordinate (0,6).

On the same way, now we would plug y=0 and solve for x.

18x  +15(0) =90

18x =90.

Dividing both sides by 18, we get

x= 5.

So, we got another coordinate (5,0)

b) We can see the line cut x-axis at 5 and y-axis at 6.

x= 149. 24+7=31. 180-31=149

your welcome

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get