As we move from the first point to the second, x increases from 2 to 10, so the change in x is 8. At the same time, y increases by 1 from 4 to 5. Thus, the slope is m = rise / run = 8/1 = 8.
Using the point-slope formula, we get y-4 = 8(x -2), or 8x - 16.
Isolate y. To do this, add 4 to both sides, obtaining:
y = 8x - 12.
This is the slope-intercept form for the equation of the line thru (2,4) and (10,5).
W= -0.5d+34
The slope is -0.5 as the water I receding by .05 feet per days (d). The y-intercept is 34 as you start with 34 feet of water.
To find how many days it'll take for the water level to reach 26 feet you'll plug 26 in for w in this equation and then solve.
26= -0.5d +34
-8 = -0.5d
Minus 34 from both sides to get the slope alone. (As shown above.) Then divide by -0.5 to get d on it's own as shown below.
16 = d
It should take 16 days for the water to recede from 34 feet to 26 feet. You can plug 16 into the original equation to check your work.
Some number divided by four.
Hope this helps!
Answer:
A
Step-by-step explanation:
62400 is what percent of 156000
<span>= 62400 / 156000 </span>
<span>= 0.4 </span>
<span>Converting decimal to a percentage: </span>
<span>0.4 * 100 = 40%</span>