3 years ago

Which equation is a true statement about CBD below?

Mathematics

1 answer:

lara31 [8.8K]3 years ago

8 0

Answer:

h^2 = a^2 -x^2

Step-by-step explanation:

a^2 = b^2 + c^2

B^2 = A^2 - C^2

A = hypotinus

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The ratio of violinists to cellists in the school orchestra must always be 7:3. If the school orchestra has 21 violinists, what

Papessa [141]

Given:

Violinists : Cellists = 7:3.

Number of violinists in the school orchestra = 21

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The combined number of cellists and violinists.

Solution:

Let the number of violinists and cellists in the school orchestra are 7x and 3x respectively.

Then, combined number of cellists and violinists is

$\text{Combined number of cellists and violinists}=7x+3x$

$\text{Combined number of cellists and violinists}=10x$ ...(i)

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$7x=21$

Divide both sides by 7.

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Now, the combined number of cellists and violinists is

$\text{Combined number of cellists and violinists}=10(3)$ [Using (i)]

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