There was a 6 square-foot pieces of wrapping paper for a present. it takes 3 1/8 square feet of paper to wrap the present. how many pieces of a 6-foot-square paper are needed to wrap 2 presents.

The answer to your question is: 2 pieces of paper.

Step-by-step explanation:

Data

6 ft²

1 present = 3 1/8 ft²

Process

Get the result of adding the area needed to wrap to presents.

                3 1/8 + 3 1/8 = 6 2/8  = 6 1/4               Remember to add the

                                                                             whole numbers and the

                                                                             fractions independently.

Each paper measures 6 ft² and we need to wrap two presents 6 1/4 ft², so we need to pieces of paper to wrap the presents.

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet