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Ede4ka [16]
3 years ago
13

What is the anwser pls and thanks

Mathematics
2 answers:
Alja [10]3 years ago
5 0

Answer:

400 atheletes (answer 2)

Step-by-step explanation:

35:21:14

x2

70:42:28

x2

140:84:56

x2

280:168:112

x1.5

420:252:168

420 + 252 + 168 = 840

Alika [10]3 years ago
4 0

answer: 400 athletes

explanation: 35 + 21 + 14 = 70 total students surveyed. 35 of the students select water (35/70) which is equal to 1/2 so you can do 800 divided by 1/2 and you’ll get 400 :)

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Answer:

System of equations:

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x + y = 25

Time underwater = 10 hours

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Step-by-step explanation:

Let x = time underwater at 20 km/h.

Let y = time on the surface at 30 km/h.

speed = distance/time

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distance underwater: 20x

distance on the surface: 30y

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total time: x + y

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--------------------------------

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8 0
2 years ago
Question
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3 years ago
1) If x= 4.2 and y = 5, what is the value of the expression
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Step-by-step explanation:

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1)

(y-x)=

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2)

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(x-x+0.7)/(x-x+0.7)=

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1

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3 years ago
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