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3 years ago

There are 9 boys to every 10 girls in a particular high school. there are 2622 students at the school. how many girls are there?

1 answer:

8 0

Boys : Girls
9 : 10

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Find total parts :
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Total Parts = 9 + 10 = 19

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Find 1 Part :
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19 parts = 2622
1 part = 2622 ÷ 9
1 part = 138

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Find 10 parts (girls) :
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1 part = 138
10 parts = 138 x 10
10 parts = 1380

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Answer: There are 1380 girls.
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$x=(243)log_{\frac{1}{81}}[(\frac{1}{81})-1]$

Step-by-step explanation:

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$log_{(\frac{1}{81})}(\frac{1}{81})^{\frac{x}{243}}=log_{\frac{1}{81}}[(\frac{1}{81})-1]\\\\\frac{x}{243}=log_{\frac{1}{81}}[(\frac{1}{81})-1]\\\\x=(243)log_{\frac{1}{81}}[(\frac{1}{81})-1]$

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