Systems of Equations Level 1:
Question 2
Which of these systems of equations has an infinite number of solutions?
Select one:

–5c + 8d = 20
–5c + 8d = 22

–6c + 11d = 20
–5c + 8d = 22

–6c + 11d = 20
–6c + 11d = 20

–6c + 11d = 22
–5c + 8d = 22

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.