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vodomira [7]
3 years ago
13

The rules of a contest say that there is a 5% chance of winning a prize. 400 people enter the contest. Predict how many people w

ill win a prize.​
Mathematics
2 answers:
Nataly [62]3 years ago
8 0

Answer:

20 people

Step-by-step explanation:

In this problem, you are solving for 5% of 400. All percentages are out of 100, meaning 5% equals 0.05 because 5 ÷ 100 = 0.05

1. Multiply 400 by 5% (0.05)

400 · 0.05 = 20 people

RUDIKE [14]3 years ago
8 0

Answer:

20 people will win

Step-by-step explanation:

i used a notes and google to answer this :)

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Leto [7]

Answer:

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Step-by-step explanation:

Let r be the radius of the circle, the measure of the arc is equal to:

\Delta s = \frac{213^{\circ}}{360^{\circ}}\cdot 2\pi \cdot r

\Delta s = \frac{71\pi}{60}\cdot r

8 0
3 years ago
Which expression is equivalent to 2(x + 7) - 2(9x - 0.4)?
Black_prince [1.1K]

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I'm pretty sure the track isn't 25 kilometer or he can't run a lap in 2 minutes. But if so, the answer is 0.08 minutes.

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Step-by-step explanation:

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1

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