Which number sentences show ways to solve the problem?

the 9 members of a conservation club purchased a total of 45 tree saplings. each member bought the same number of trees to plant in the community. each tree cost $15. how much did each member pay for the trees?

choose all answers that are correct.

a.
15 × 9 = 135 and 135 – 75 = 60

b.
3 × 15 = 45 and 45 + 15 = 60

c.
45 ÷ 9 = 5 and 5 × 15 = 75

d.
45 × 15 = 675 and 675 ÷ 9 = 75

must choose more than one answer

answer: integers are just whole numbers: positive, negative, and zero.

i = {-∞, -2, -1, 0, 1, 2, 3, ∞}

let x = 1st integer

let y = 2nd integer

x = 3y + 17   {equation 1}

xy = -24         {equation 2}

substitute 3y+17 in place of x n equation 2

and solve for y.

(3y+17)y = -24

3y2 + 17y = -24

3y2 + 17y + 24 = 0

from quadratic equation:

y = [-17±√(172-4(3)(24))]/(2(3))

y = (-17 ±√1)/6

y = (-17+1)/6   or     y = (-17-1)/6

y = -16/6           or     y = -18/6

y = -2 2/3         or   y = -3

since we are dealing with

y = -3

x = 3y+17 = -9+17 = 8

the integers are -3, 8

step-by-step explanation:

look at the picture i have filled out a table for it. hope this .

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step-by-step explanation:

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