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Alinara [238K]
3 years ago
13

Write the value of each expression in standard form. Expression Standard Forr 2hundres×10 in standard form​

Mathematics
1 answer:
nignag [31]3 years ago
3 0
Write it as a power of 10
200 x 10
2 x 10^2
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Answer:

7:8

Step-by-step explanation:

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Air is a solution composed of 78% nitrogen and 21% oxygen. Identify the solute and the solvent. *
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nitrogen is the solvent and oxygen is the solute

Step-by-step explanation:

Most of the time the solute will be present in a smaller quantity and the solvent will appear in a larger quantity.

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An accessories store sells $8 custom socks and $11 custom hats. If 11 items were sold on Monday, and the
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Answer:

7 socks were sold

Step-by-step explanation:

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Mr. Jackson invested a sum of money at 6% per year, and 3 times as much at 4%
bogdanovich [222]

Mr. Jackson invested $800 at 6% per year and $ 2400  at 4 % per year

<h3><u>Solution:</u></h3>

Mr. Jackson invested a sum of money at 6% per year, and 3 times as much at 4% per year.

Let the sum invested be ‘a’ and ‘3a’ at 6% per year and 4 % per year respectively

Also, his annual return totaled $144

We can form following equation on the basis of question:-

\begin{array}{l}{\text { Then, } \frac{a \times 6 \times 1}{100}+\frac{3 a \times 4 \times 1}{100}=\$ 144} \\\\ {\frac{6 a}{100}+\frac{12 a}{100}=144} \\\\ {\frac{6 a+12 a}{100}=144} \\\\ {\frac{18 a}{100}=144} \\\\ {18 a=14400} \\\\ {a=14400 \div 18}\end{array}

a = $800

The amount of money invested at 6% = a = 800

The amount of money invested at 4 % = 3a = 3(800) = 2400

So, the amount of money invested at 6% is $800 and the amount of money invested at 4% is $ 2400

4 0
3 years ago
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