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3 years ago

Someone pls help me :)

Mathematics

1 answer:

klasskru [66]3 years ago

4 0

25%

.3 + .2 + .15 + .1 = .75

1.00 - .75 = .25

120 students

There are 400 total students

.3 * 400 = 120

tennis-

.1 * 400 = 40 students prefer tennis

football-

.25 * 400 = 100 students prefer football

140 students like football/tennis

400 students

There are four quarters in a whole

.25% = 100

100 * 4 = 400

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3 years ago

Answer correctly please

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Step-by-step explanation:

7. $\displaystyle /text{The answer makes sense because since the depreciation rate is 15%, we know that we need to use the "exponential decay" formula.}$

6. $\displaystyle /text{After a depreciation rate of 15% for the past 8 years, the stock is now worth approximately $272,49.}$

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4. $\displaystyle 1000 = a \\ -15\% + 100\% = 1 - r; 85\% = 1 - r \\ 8\:years = time\:[t]$

3. $\displaystyle /text{We need to use the "Exponential Decay" formula} - f(t) = a[1 - r]^t, where a > 0$

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1. $\displaystyle /text{initial amount: $1000, a depreciation rate of 15%, and a time period of 8 years}$

I am joyous to assist you anytime.

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3 years ago