If two consecutive numbers
add up to 8815, what are the
numbers?

answer : 4407,4408

because 8815/2 = 4407.5 so you take away the .5 to find one number and you add .5 for the other

4407 and 4408

Step-by-step explanation:

1. Call one of the numbers x, and the other x + 1 (because a consecutive number is one that follows another).

2. Equal the sum of those two numbers to 8815, solve for x.

x + x + 1 = 8815

Combine like terms.

2x + 1 = 8815

Subtract 1 from both sides.

2x = 8814

Divide both sides by 2

x = 4407

3. If x = 4407, then x + 1 = 4408.

the square root of what number? if you add that, then someone will probably answer the question.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18