2 Set up and solve a proportion for the following applicatio

2. Set up and solve a proportion for the following application problem. If
66 pounds of grass seed cover 431 square feet, how many pounds are needed for 7758 square feet?
3. Find the best buy (based on price per unit) for cereal.
13-ounce size: $3.49
25-ounce size: $6.09
33-ounce size: $5.09
4. At 3 p.m., Coretta\'s shadow is 1.25meters long. Her height is 1.56 meters. At the same time, a tree\'s shadow is 5.53meters long. How tall is the tree? (Round to the nearest hundredth

Solution

2) 66 pounds of grass seed cover 431 square feet

therefore ,let x pounds covers 7758 square feet

66/431 = x/7758

66* 7758 = 431x

x = 66*7758 / 431

x = 1188

therefore, 1188 pounds are needed for 7758 square feet