Let the 2 numbers be x and y
x+ y = 35
let the larger number be x
3x = 4y
y = 3x/4
so,
x + 3x/4 = 35
7x/4 = 35
x/4 = 5
x = 4*5 = 20
so the larger number is 20.
8 x 6 =48 4x9=36 so 48 + 36= 84 The total cost was $84
Slope is a constant rate of change; change in y over change in x; rise over run; represented by the variable m. Point slope is the equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line.
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I think, I'd go with A) Always true. As 2 points is always the line. If you add third one, it will be collinear.
The answer is d. angles 8 and 16