7.064 and expanded form
1 answer:
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<u>Given:</u>
Take west to be the positive direction. The height of a sloped roof above the place where you stand is 12 feet. If you move 3 feet west, the height is 10 feet.
We need to determine the slope.
Let x denote the standing place.
Let y denote the height.
Writing the given as coordinates, we get;
(0,12) and (3,10)
<u>Slope</u>:
The slope can be determined using the formula,
Substituting the coordinates (0,12) and (3,10), we have;
Thus, the slope is
Ok so, Since Kelli and her family drove a total of 293 miles in 7 hours, then your equation should be 
Now, since you have your ratio you divide 293 by 7 in order to get how many miles were driven in one hour
= 41.85714286 miles/hr
Now, since you have your ratio you divide 293 by 7 in order to get how many miles were driven in one hour