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3 years ago

I eat a third of a box of chocolates there are not 16 left how many were in the box at the start?

Mathematics

2 answers:

daser333 [38]3 years ago

5 0

If you ate a third of the box and there ARE 16 left then you started with 48 originally

hammer [34]3 years ago

4 0

You started with 48 because u ate a third of it and you said 16 there fore there is 48

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MakcuM [25]

Answer:

27 females are in the class

Step-by-step explanation:

Spilt 30 into 10 (30 divided by 10) and then you get 3. The number of males in the class is 3. Now subtract 30 from 3 and you get 27. Therefore, there are 27 females in the class.

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3 years ago

Find the sum of the geometric series. a b c d

Musya8 [376]

Answer:

B. $4\sqrt{3}-6$

Step-by-step explanation:

We have,

The first term of the series, $a=\sqrt{3}$ .

The common difference is given by, $r=\frac{\frac{-3}{2}}{\sqrt{3}}$ i.e. $r=\frac{-\sqrt{3}}{2}$ .

Since, the given series is an infinite series, then,

Sum of an infinite series = $\frac{a}{1-r}$

i.e. Sum the series = $\frac{\sqrt{3}}{1+\frac{\sqrt{3}}{2}}$

i.e. Sum the series = $\frac{2\sqrt{3}}{2+\sqrt{3}}$

i.e. Sum the series = $\frac{2\sqrt{3}}{2+\sqrt{3}}\times \frac{2-\sqrt{3}}{2-\sqrt{3}}$

i.e. Sum the series = $\frac{2\sqrt{3}\times (2-\sqrt{3})}{4-3}$

i.e. Sum the series = $4\sqrt{3}-6$

Thus, the sum of the series is $4\sqrt{3}-6$ .

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3 years ago

A plane descends by 4500 ft in 5 minutes. What is the change in the planes elevation each minute

beks73 [17]

The plane will descend 900 ft every minute

This is the case because we divide 4500 by 5

Hope this helps and have a great day!

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

because there are 60 seconds in a minute and 60+30 is 90

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