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nika2105 [10]
3 years ago
12

11:1:11111

Mathematics
1 answer:
Wittaler [7]3 years ago
7 0

Answer:

Step-by-step explanation:

To solve this you take 0 as the starting number, he lost 20 points so you subtract 20 and get -20. Next add 15 points. You then get -5. Then he got another answer right so you add 35 to -5. It the same if you say 35-5. Which gives you 30. So your answer is 30

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Maria walked 3 km west and 4 km south calculate how far she is from her starting point.
Rufina [12.5K]

Answer:

5 km

Step-by-step explanation:

We are given the distances walked by Maria;

  • 3 km west and 4 km south

We are required to determine the displacement from her starting point;

  • We are going to use Pythagoras's theorem;

a² + b² = c²

Taking, the distances towards south and towards west as the legs of the triangle;

Then, c² = 3² + 4²

               = 25

         c  = √25

            = 5 km

Therefore, the displacement from the starting point is 5 km

8 0
3 years ago
How can you write 6000 in exponents
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A certain school has 60 freshmen, 45 sophomores, 20 juniors, and 16 seniors. what is the ratio of juniors to seniors?
Angelina_Jolie [31]
<span>20 juniors, and 16 seniors
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answer
</span>ratio of juniors to seniors
5/4 or 5:4
5 0
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Mrs. Wang is 23 years older than her daughter. In 5 years, their age will total 63. How old are they now?
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