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Angelina_Jolie [31]
3 years ago
13

A school held a special math event for parents. On the first night, 150 parents attended, which was 40% below the expected atten

dance. On the second night, 210 parents attended, exceeding the expected attendance by 40% . By what percent did the actual attendance at the special math event exceed or fall below the expected attendance for both nights?
Mathematics
1 answer:
Serga [27]3 years ago
4 0

Answer:

10.429% exceed

Step-by-step explanation:

expected:

150x [100+40]/100=210 parents were expected on first night

210x60/100=126 parents expected on the second night

210+126=326 expected

percentage difference=

210+150=360

360/326 x 100=110,429%

110,429%-100%=10,429% exceed

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Answer:

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Step-by-step explanation:

The formula of Compound Interest is:

A = P(1+\frac{r}{n})^{nt}

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Putting all these values in above formula:

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