Write a corresponding real-world problem to represent 2x-125=400

Mathematics

1 answer:

MrRissso [65]3 years ago

7 0

2 x - 125 = 400

2 x = 400 + 125

2 x = 525

x = 525 / 2

<span>x = 262.5</span>

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Step-by-step explanation:

Let's start by taking a look at the blue line. The slope of any line that passes through two points is equal to the change in y-values over the change in x-values. We can see that the line passes through points (0, 1) and (1, 0). Assign these points to $(x_1,y_1)$ and $(x_2, y_2)$ (doesn't matter which you assign) and use the slope formula:

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Therefore, the slope of this line is -1. In slope-intercept form $y=mx+b$ , $m$ represents slope, so one of the lines must have a term with $-x$ in it, which eliminates answer choices A and D.

For the second line, do the same thing. The red line clearly passes through (0, -3) and (3, -2). Therefore, let:

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