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Diego has run 2/3 of a race's distance. He has run 8 & 1/2 kilometers. How long is the whole race? 8 & 1/2 divided by 2/3 = ? 2/3 divided by 8 & 1/2 = ? 2/3 x ? = 8 & 1/2 8 & 1/2 x ? = 2/3 8 & 1/2 times 3/2 = ? 8 & 1/2 x 2/3 = ?

Respuesta :

Answer: See explanation

Step-by-step explanation:

Let the whole race be x.

Since Diego has run 2/3 of a race's distance which is 8 1/2 kilometers. The length of the whole race will then be:

2/3 × x = 8 1/2

x = 8 1/2 ÷ 2/3

x = 8 1/2 × 3/2

x = 17/2 × 3/2

x = 51/4

x = 12 3/4 kilometers.

The whole race is 12 3/4 kilometers.

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