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Cerrena [4.2K]
3 years ago
8

What is the fourth number if three of the numbers are 80, 95, and 85?

Mathematics
2 answers:
krok68 [10]3 years ago
8 0

Answer:

88

Step-by-step explanation:

The answer is 88 because that is the mean, or average or the three numbers.

Strike441 [17]3 years ago
3 0
100 because it goes up 15 and 5
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Answer:

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Step-by-step explanation:

see the attached figure to better understand the problem

we know that

∠QSR≅∠XZY ---> given problem

∠QRS≅∠XYZ ---> given problem

so

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Remember that, if two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

That means

\frac{QS}{XZ}=\frac{QR}{XY}=\frac{RS}{YZ}

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<em>In the right triangle XYZ</em>

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substitute the given values

tan(X)=\frac{9}{12}

Simplify

tan(X)=\frac{3}{4}

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so

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therefore

tan(Q)=\frac{3}{4} ---->Three-fourths

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