##### ozzie knows that this year her team will play 3 less games than last year. Last

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ozzie knows that this year her team will play 3 less games than last year. Last year they won 80% of their games. If they win, 90% of their games this year, they will have won the same amount of games as last year. How many games are they playing this year?

Jun 8th, 2015

Let the number of games played last year be y

This year they will play y-3

Total number of games they won last year = 80/100 x y = 0.8y

If they win 90% of their games this year they would have won 90/100 x (y-3) = 0.9y - 2.7

So 0.8y = 0.9y-2.7 since if they win 90% of their games this year,  they will have won the same amount of games as last year

Now lets solve

0.8y = 0.9y - 2.7

2.7 = 0.9y - 0.8y

2.7 = 0.1y

27 = y

y = 27

So this year they will play 27-3 = 24 games.

Jun 8th, 2015

Are you comfortable?

Jun 8th, 2015

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Jun 8th, 2015
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Jun 8th, 2015
Dec 5th, 2016
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