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Nonamiya [84]
3 years ago
11

Juan got on an elevator at the middle floor of a building, went up 4 floors, down 3 floors, up 1 floor, and down 9 floors, where

he left the elevator on the ground floor. How many floors are in the building?
Mathematics
1 answer:
likoan [24]3 years ago
3 0
You answer will be 17. Just add.
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816.67

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Pipe A can fill a tank in 40 minutes, while pipe B takes 60 minutes to fill the same tank.
ella [17]

Answer:

24 minutes.

Step-by-step explanation:

This question shows up in a great many places in math or physics, so it is a pretty good question to learn how to do.

First you should note that answer will be under 40 minutes.

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2 years ago
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Step-by-step explanation:

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3 years ago
The table shows a proportional relationship between the number of stars Roberto collects in a game and his total points. A row o
maks197457 [2]

Answer:

1) 20 stars; 30 points.

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3) 38 stars, 57 points.

Step-by-step explanation:

<h3> The missing table is attached.</h3>

Let  be "x" the numbers of stars Roberto collects and "y" his total points.

The proportional relationship has this form:

y=kx

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x=8\\y=12

Substituting these values into  y=kx and solving for "k", we get:

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2) For x=28 :

y=(1.5)(28)=42

3) For x=38 :

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