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Orlov [11]
3 years ago
13

Rewrite 0.81 x 104 in scientific notation. x 10 HELP ME

Mathematics
2 answers:
aev [14]3 years ago
4 0
0.81 x 10^4
= 8.1 x 10^3
Rama09 [41]3 years ago
4 0

Answer:

Ok ill help i guess

Step-by-step explanation:

0.81 X 10000

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Lynn has a box of crayons.
Scrat [10]

Answer:

<em>There are 72 crayons in the box</em>

Step-by-step explanation:

<u>Fractions</u>

To solve this problem we'll manage numbers as fractions to keep the precision up to the end of it.

Lynn has a box of crayons. It's given 4/9 of the crayons are blue. The remaining crayons are:

1-\frac{4}{9}=\frac{5}{9}

From that portion, 65% are red, or equivalently, 35% are yellow.

We write 35% as a fraction:

\displaystyle 35\%=\frac{35}{100}=\frac{7}{20}

Thus, the portion of yellow crayons is:

\displaystyle \frac{7}{20}\cdot \frac{5}{9}=\frac{7}{36}

This fraction of x crayons is equal to 14, thus:

\displaystyle x=\frac{14}{\frac{7}{36}}=14\cdot\frac{36}{7}

x = 72

There are 72 crayons in the box

7 0
2 years ago
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jek_recluse [69]

18 km apart

You subtract 33 and 15

7 0
3 years ago
Easy math problem plz Halp
yan [13]
The answer is 19.5

You add all the numbers to get 273 and divide by the amount of dots which is 14 to get 19.5
6 0
2 years ago
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Nada, solo estoy probando xdxd
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