Question

(×-3,1):(-3 4/7)=4,2

Answer 1

(×-3,1):(-3 4/7)=4,2

х-3.1=4.2*(-3 4/7)

x-3.1=21/5*(-25/7)

x-3.1=-15

х=-15+3.1

х=-11.9

Answer 2

It seems like you've provided two points in the format (x, y): (x1, y1) and (x2, y2) and asked for the slope between these two points. To calculate the slope between two points (x1, y1) and (x2, y2), you can use the slope formula:

Slope = (y2 - y1) / (x2 - x1)

Let's calculate the slope using the points you provided:

First point: (x1, y1) = (-3, 1) Second point: (x2, y2) = (-3 4/7, 4)

Step 1: Convert the mixed number (-3 4/7) into an improper fraction: -3 4/7 = -(3*7 + 4) / 7 = -25 / 7

Step 2: Plug the values into the slope formula:

Slope = (4 - 1) / (-25/7 - (-3)) Slope = 3 / (-25/7 + 21/7) Slope = 3 / (-4/7) Slope = 3 * (-7/4) Slope = -21/4

So, the slope between the points (-3, 1) and (-3 4/7, 4) is -21/4.