1) The perimeter of a rectangular classroom floor is 90 feet. The length of the floor is twice the width. Which equation would NOT help us solve for the length and width of the classroom? Show your
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x + 2y = 90
x = 2y
2(2y) + 2y = 90
2x + 2y = 90

The equation would NOT help us solve for the length and width of the classroom is "".

Step-by-step explanation:

Let y be the width of the rectangular classroom floor and x be the length of the rectangular classroom floor .

Given ,

The perimeter of a rectangular classroom floor is 90 feet.

The length of the floor is twice the  width.

i.e. Length =2 (width)

i.e. x= 2y ..(i)

Also, perimeter = 2(length+width)

When we put value of x from (i), we get

Hence, the equation would NOT help us solve for the length and width of the classroom is "".

Sample response: Adele is not correct. There are only 5 choices. Here, we are not able to use the fundamental counting principle because there are different choices for each material.

Step-by-step explanation: