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vodomira [7]
4 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]4 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]4 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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Answer:

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Step-by-step explanation:

 You can observe in the figure attached that  "AC" is the distance between the Sun and the shooting star.

Knowing the distance between the Earth and the Sun "y" and the angle x°,  the scientist can use only these two measurements to calculate the distance between the Sun and the shooting star by applying one of the trigonometric functions: Cosine of an angle.

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In this case:

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Therefore, the scientist can substitute these measurements into cos\alpha=\frac{adjacent}{hypotenuse} , and solve for the distance between the Sun and the shooting star "AC":

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