You and your friend are painting the walls in your apartment. You estimate
that there is 1000 square feet of space to be painted. You paint at a rate of 4 square
feet per minute and your friend paints at a rate of 3 square feet per minute. Your
friend shows up to help you paint 45 minutes after you have already started painting.
a. Write an equation that gives the total number of square feet y as a function of the
number of minutes x it takes to paint all of the walls.
b. How long will it take you and your friend to finish painting? Round your answer
to the nearest minute.

Honestly I dont know man, Im pretty sure you already  found thee answer already since this was in April

Step-by-step explanation:

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

idk

step-by-step explanation: