Someone, please help me! I"m on my last problem! The water-supply manager for Dallas needs to supply the city with at least 19 million gallons of potable water per day. The supply may be drawn from the local reservoir or from a pipeline to an adjacent town. The local reservoir has a maximum daily yield of 20 million gallons of potable water, and the pipeline has a maximum daily yield of 13 million gallons. By contract, the pipeline is required to supply a minimum of 7 million gallons per day. If the cost for 1 million gallons of reservoir water is $290 and the cost for 1 million gallons of pipeline water is $365, how much water should the manager get from each source to minimize daily water costs for the city? What is the minimum daily water cost?

understand that i don't know the answers

will someone answer his question

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

answer:   c ?

step-by-step explanation: