Answer:
The center of the coordinate system (where the lines intersect) is called the origin. The axes intersect when both x and y are zero. The coordinates of the origin are (0, 0).
Step-by-step explanation:
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I think it’s a typo, unless it’s 2d
Step-by-step explanation:
5 - 7x = -44
5 + 44 = 7x
49 = 7x
7x = 49
x = 49/7
x = 7
First number = x
Consecutive number = x+1
"squares differ by 31" means to square both numbers and subtract them:
(x+1)^2 - (x)^2 = 31
x^2+2x+1 - x^2 = 31
2x+1 = 31
2x = 30
x = 15 (first number)
x+1 = 15+1 = 16 (consecutive number)
there were 51 Sunday papers sold and 53 Friday papers sold
