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worty [1.4K]
3 years ago
5

I NEED HELP ON THIS A.S.A.P !!!!!!!! will give brainleist!!!

Mathematics
2 answers:
Phantasy [73]3 years ago
8 0

D

Take 10% of 30.

Take another 10% of 30 but divide it by 2. You will get $3 plus $1.50 which equals $4.50

blsea [12.9K]3 years ago
6 0

Answer:

D

Step-by-step explanation:

30.20 * 15% (or 0.15) = 4.53

4.53 is about 4.50

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40% of the children in a sports club play badminton. 25% of the children who play badminton also play squash. There are 11 child
Keith_Richards [23]

Answer:

There are 110 children total in the sports club

Step-by-step explanation:

To get this answer, its actually easier than it seems. You might need a calculator however.

First you start with the 11 children who play both badminton and squash, then, you divide that by 0.25 (25%) to get 44.

Next you take 44 and divide it by 0.4 (40%) to get 110.

And there you go! If you want to make sure you got it right simply start with 110 and multiply it by 0.4 then multiply the number/decimal you get by 0.25. You should get 11 to confirm your answer :)

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226Ra has a half-life of 1599 years. How much is left after 1000 years if the initial amount was 10 g?
Ray Of Light [21]
\bf \textit{Amount for Exponential Decay using Half-Life}\\\\
A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
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\end{cases}
\\\\\\
A=10\left( \frac{1}{2} \right)^{\frac{1000}{1599}}
8 0
3 years ago
A contractor is tiling your bathroom with one-foot square tiles. How many tiles are needed for the job? PLS HELPPP
Evgesh-ka [11]

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Step-by-step explanation:

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It is your bathroom area (length*width) divided by the area of the tiles, which is 1*1=1 foot^2(square)

Also it depends on the unit you used for the bathroom, you gotta transfer the unit for the bathroom length and width into feet.

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kykrilka [37]

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Step-by-step explanation:

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4 0
2 years ago
What is the square of 215
Natali5045456 [20]
Aprox 14.663
now i need to fill this to 20 letters
hey how ya doin
i thing this is enough


6 0
2 years ago
Read 2 more answers
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