Question

Need help! Please include steps

Answer 1

Answer:

30 minutes

Step-by-step explanation:

If we have 2 points, we can find the slope

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

(0,24) and (5,20)

m = (20-24)/(5-0)

    = -4/5

We know the y intercept (where x=0)  (0,24)

We can write an equation for the line in y =mx+b

y = -4/5x+24

We want y = 0  (when the diameter is 0)

0 = -4/5 x +24

Subtract 24 from each side

-24 = -4/5 x +24-24

-24 = -4/5 x

Multiply each side by -5/4 to get x alone

-5/4 * -24 = -5/4 * -4/5 x

30 = x