Question

Set up and solve a proportion for the following application problem. If 55 pounds of grass seed cover 404 square​ feet, how many pounds are needed for 7272 square​ feet?

Answer 1

Answer:   990 lbs

Step-by-step explanation:

Set up the proportion, then cross multiply and solve for the unknown value (pounds).

$\dfrac{55\ lbs}{404\ sq\ ft}=\dfrac{x}{7272\ sq\ ft}\\\\\\55\ lbs\cdot 7272\ sq\ ft=404\ sq\ ft\cdot x\\\\\\\dfrac{55\ lbs\cdot 7272\ sq\ ft}{404\ sq\ ft}=x\\\\\\990\ lbs=x$