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rjkz [21]
3 years ago
6

Bella received $1,200 after winning a national mathematics competition. She plans to invest this money for 5 years.

Mathematics
1 answer:
vredina [299]3 years ago
6 0

Answer:

Step-by-step explanation:

A. 1200(1.078)⁵ = 1746.928179

B. 1200(1+.072*5)= 1632

Option A

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Jennifer's Flower Shop sells flowers for $1.35 each. Mary's Flower Shop sells a dozen flowers for $15.96. Who has the best deal?
I am Lyosha [343]

Answer:

Mary has the better deal

Step-by-step explanation:

Jennifer's $1.35 * 12 = $16.20

Mary's 12 flowers = $15.96

7 0
3 years ago
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Pls help........................................................
Nady [450]

Answer:

6 i think

Step-by-step explanation:

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A scientist running an experiment starts with 100 bacteria cells. These bacteria double their population every 15 hours. Find ho
IRISSAK [1]
<h2>Hello!</h2>

The answer is: 23.77 hours

<h2>Why?</h2>

Total(t)=Start*2^\frac{t}{15}

Where:

Total(t) is equal to the amount for a determined time (in hours)

<em>Start</em> is the original amount

<em>t </em>is the time in hours.

For example, it's known from the statement that the bacteria double their population every 15 hours, so it can be written like this:

Total(15)=100*2^\frac{15}{15}=100*2^{1}=100*2=200

To calculate how long it takes for the bacteria cells to increase to 300, we should do the following calculation:

300=100*2^{\frac{t}{15} } } \\\frac{300}{100}=2^{\frac{t}{15} } }\\log(3)=log(2^{\frac{t}{15} })\\\\\\log(3)=\frac{t}{15}*log2\\t=\frac{log(3)}{log(2)} *15=23.77

So, to know if we are right, let's replace 23.77 h in the equation:

Total(t)=100*2^\frac{23.77}{15}=299.94

and 299.94≅300

Have a nice day!

8 0
3 years ago
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Evaluate each expression <br> 8-(-5)-3
Vesnalui [34]
<h3>Answer:</h3>

\large\boxed{10}

<h3>Step-by-step explanation:</h3>

In this question, we're evaluating the given expression.

The given expression is:

8-(-5)-3

We would simply solve the equation until we reach our final answer.

Solve:

8-(-5)-3\\\\\text{The "-(-" will turn to a plus sign}\,\,\\\\8+5-3\\\\\text{Add 8 and 5}\\\\13-3\\\\\text{Finish off by subtracting}\\\\10

A friendly reminder is when you see something like "-(-", you would turn it into a plus sign.

When you're done solving, you should get 10.

This means that 10 would be your final answer.

<h3>I hope this helped you out.</h3><h3>Good luck on your academics.</h3><h3>Have a fantastic day!</h3>
5 0
4 years ago
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6, 8, 11, 12, 2x – 8, 2x + 10, 35, 41, 42, 50
krok68 [10]

Answer:

12

Step-by-step explanation:

(2x-8+2x+10)/2 = 25

(4x+2) = 2×25

4x+2 = 50

4x = 50-2

4x = 48

x = 48/4

x = 12

6 0
3 years ago
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