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Serjik [45]
3 years ago
13

What's the answer to this problem help pls ?n+3=12

Mathematics
2 answers:
Elden [556K]3 years ago
6 0
3=n if *3=9+3=12
you're welcome
vichka [17]3 years ago
5 0
9 cause you add 9+3 to get 12

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What is 9*10^-5 in standard notation
kvasek [131]

Answer:

[see answer below]

Step-by-step explanation:

9*10^{-5}

We would move the decimal 5 places to the left.

9*10^{-5}\\\\\rightarrow\boxed{0.00009}

Hope this helps!

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3 years ago
There are 15 cards inside a bag with 1-15 numbers written on each card. If you pick one card at random, what is the probability
Snowcat [4.5K]

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Step-by-step explanation:

Please kindly check the attached files for details.

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3 years ago
What's the answer????
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7 0
3 years ago
A rectangle swimming pool is 8 feet deep. One side of the pool is 4.5 times longer than the other. The amount of water needed fo
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The side lengths of the pool 10 ft and 45 ft.

<u>SOLUTION: </u>

Given, a rectangle swimming pool is 8 feet deep.  

One side of the pool is 4.5 times longer than the other.  

Let the length of pool be n feet, the width will be 4.5n feet

The amount of water needed for the swimming pool is 3600 cubic ft

We have to find the dimensions of the pool. Now, we know that,  

\begin{array}{l}{\text {volume of pool}=\text {depth} \times \text {length } \times \text {width}} \\\\ {\rightarrow 3600 \text { cubic } f t=8 \text { feet } \times \text { n feet } \times(4.5 n) \text { feet }} \\\\ {\rightarrow 8 n \times 4.5 n=3600} \\\\ {\rightarrow 36 n^{2}=3600} \\\\ {\rightarrow n^{2}=100}\end{array}

On taking square root on both sides we get,

\begin{array}{l}{\rightarrow\sqrt{n^{2}}=\sqrt{100}} \\\\ {\rightarrow n=10 \mathrm{ft}}\end{array}

So, the width will be 4.5 n=4.5 \times 10=45 \mathrm{ft}

5 0
3 years ago
Divya also wants to make fruit smoothies for dessert. She purchases
Slav-nsk [51]

Answer:

$17.97

Step-by-step explanation:

add everything up

- bananas: 6(0.75) = $4.50

- rice milk: $3.49

- strawberries: 2(4.99) = $9.98

5 0
3 years ago
Read 2 more answers
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