John is at the top of his house that is 8 m tall. He wants to take water out of the well that is 21 m deep, using a bucket attached by a rope. How long does the rope have to be to reach the water level from the top of the
house?

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation:

-8/2y-8=5/y+4-7y+8/y^2-16

we move all terms to the left:

-8/2y-8-(5/y+4-7y+8/y^2-16)=0

we can not solve this equation