Arectangular swimming pool is represented by x as the width and one less than twice the width as the length. if the area of the swimming pool is given by 28 sq. ft., which equation could be used to model the area of swimming pool?

a) 28 = 2x-1•x

b) 28x = 2x -1

c) 28 = (2x-1) + (x)

d) 28 = (2x - 1) (x)

Option D.

Step-by-step explanation:

Let

x ----> the width of the rectangular swimming pool in feet

y ----> the length of the rectangular swimming pool in feet

we know that

the area of the  rectangular swimming pool is equal to

we have

so

-----> equation A

---> equation B

substitute equation B in equation A

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.