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BigorU [14]
3 years ago
15

Alvin is 7 years younger than Elgas. The sum of their ages is 63. What is Elgas age?

Mathematics
1 answer:
Elden [556K]3 years ago
6 0

Answer:

Elgas is 35.

Step-by-step explanation:

Let's set up an equation.

Alvin is 7 years younger than Elgas.

A = E - 7

The sum of their ages is 63.

A + E = 63

Let's use substitution.

Plug in the first equation of A into the second equation.

A + E = 63

(E - 7) + E = 63

Combine like terms.

2E - 7 = 63

Add 7 to both sides.

2E = 70

Divide both sides by 2.

E = 35

Elgas is 35.

Hope this helps!

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3 years ago
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Answer:

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As the diagram isn't given.

Consider a right cone shown in the ATTACHMENT.

where

r = 8 in

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First find the value of hypotenuse s by using Pythagoras theorem

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