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solve each problem by factoring 1. area of a painting A retangular painting with

ID: 3102150 • Letter: S

Question

solve each problem by factoring

1. area of a painting

A retangular painting with a width of x centimeters has an area of x2 + 50x square centimeters. Find a binomial that represents the length. See the accompanying figure.

2. Amount of an investment

The amount of an investment of p dollars for + years at simple interest rate r is given by A= P + prt.

a) rewrite this formula by factoring out the greatest common factor on the right-hand side

b) Find A if $8,300 is invested for 3 years at a simple interest rate of 15%

Explanation / Answer

1. x2+50x = x(x+50) = area, where width = x. L= x+50

2. A = P + prt

A = P(1+1rt)

A = 8300(1+(1)(.15)(3)

A = $3735.00