On spring break, you are going to volunteer and paint houses. Each plastic container holds 5 gallons of paint. Your group gets two donations of 10 containers and 5 containers
of paint. You will purchase the remaining containers of paint needed to paint 21 houses.
For each house you will need 8 gallons of paint. What is the minimum number of
containers you need to buy?

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7