Question

The cost to rent a rug-cleaning machine from the supermarket is $23 per day. The supermarket charges a check-out fee of $45 for the rental. Tristanne spent $137 to rent the rug-cleaning machine. If d represents the number of days Tristanne rents the machine, which equation can be used to find the value of d?

Answer 1

23d=137
23d+45=137
45d=137
45d+23=137

Answer 2

23d + 45 = 137

Answer 3

The perimeter of a square is equal to the perimeter of an equilateral triangle. The length of a side of the square is given by x, and the length of a side of the equilateral triangle is given by x=1 . Which equation can be used to find the value of x?

Answer 4

x=3(x+1)
3x=4(x+1)
4x=3(x+1)
x=x+1

Answer 5

hmm...perimeter of square is 4x and perimeter of equilateral triangle is 3x.
so equilateral triangle is 3x + 1.
4x = 3(x + 1)...I think

Answer 6

you might need to get a second opinion on this one

Answer 7

it was right

Answer 8

what a relief....lol :)