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40 children from an after-school clubwent to matinee. This is 25%of the children club. How many children are in the club.

Respuesta :

kanest
Use proportions to figure out the amount of children in the club.

If 40 is 25%, use the following formula to find the total amount:

[tex] \frac{40}{25} = \frac{x}{100} [/tex]

Use cross multiplication.

40 * 100 = 4000
25 * x = 25x
25x = 4000

Divide both sides by 25.

x = 160

There are 160 total children in the club.

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