Sumali sa IDNStudy.com at simulang makuha ang maaasahang mga sagot. Sumali sa aming interactive na platform ng tanong at sagot para sa mabilis at eksaktong tugon mula sa mga propesyonal sa iba't ibang larangan.

Mrs. Jacinto asked a carpenter to construct a rectangular bulletin board. She told the carpenter that the board's area must be 18 sqaure feet.
1.Suppose the length of the board is 7ft. longer than its width what equation would represent the given situation?
2.How would you describe the equation's formulated?


Sagot :

1. let W = L + 7
A = L x W
by substitution
18 = L ( L + 7)
18 = 2L² +7L
L = 2

W = L + 7
W = 2 + 7
W = 9 ft

2. The equation formulated to get the Width using the formula Area of an rectangle 
     is a quadratic equation.

Equation formulated:

2L² + 7L -18 = 0