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nika2105 [10]
3 years ago
11

How do I solve this?

Mathematics
2 answers:
laila [671]3 years ago
7 0
The < is just like and equal sign just looks a little different think of it that was for the first couple steps. So you have 13-3y<-5. First do, -5+13=8. Now you have -3y<8. Then your want to do 8 divided by -3 and you get=-2.666666667 and that equals y.

-2.7=y then make that equal sign into the normal sign again. -2.7
satela [25.4K]3 years ago
3 0
You want to get y by itself.
To do this with the equation 13 -3y < -5 you want to subtract 13 from both sides.

13 -3y < -5
-13 -13

This will get the -3y by itself.

-3y < -18

After this, divide by -3 on both sides to solve for y.

-3y < -18
—— ——
-3 -3

When you divide by a negative in an inequality, remember to flip the inequality sign.

y > 6

There you go!
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Step-by-step explanation:

A Certain westbound U.S highway truck route near a river has a downhill grade of 9%

A) A 9% downhill grade means that the decrease in elevation of the road over the segment is 9% of the change in Horizontal distance over the same segment. In other words, for every 100 horizontal feet the road descends 9 feet and the road has a slope of 0.09 vertical feet per horizontal foot.

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