1/3s+14=26
minus 14 both sides
1/3s=12
multiply both sides by 3/1
s=36
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Answer: 45.5
Explanation:
5 x 7 x 1/2 = 17.5
18 x 7 x 1/2 = 63
63 - 17.5 = 45.5
I hope this helped!
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- Zack Slocum
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Answer:
(1/2)x + $5 (Answer A)
Step-by-step explanation:
Two points on the line representing the cost are (8, $9) and (12, $11).
The change in x is 4 (minutes); this is the 'run.' The change in y is $2 (this is the 'rise'). Thus, the slope of this line is m = rise / run = $2/(4 min), or 1/2 dollar per min.
Applying the slope-intercept formula y = mx + b, we get:
$9 = (1/2)(8) + b, and from this we see that b must be $5.
Then the correct equation is y = (1/2)x + $5.
We watch where the two lines intersect.
And that is at x = 3, and y = 0.
So it is (3, 0). Option C.