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3 years ago

A box contains 13 red blocks, 8 orange blocks, 9 green blocks, and 10 blue blocks. Anna randomly chooses a block from the box.

Mathematics

1 answer:

Vinvika [58]3 years ago

3 0

Im 90% sure its 0.21

hope I helped

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The body of a person who weighs 50 kilograms contains around 2 × 10^2 grams of sodium chloride. How much sodium chloride is cont

Aleksandr [31]

Answer:

Answer is A. $3.6*10^{5}$

Step-by-step explanation:

Mass of Sodium Chloride in one 50kg person = $2*10^{2}$ grams

Mass of Sodium Chloride in $1.8*10^{3}$ 50kg people = $2*10^{2}$ * $1.8*10^{3}$

= $(1.8*10^{3})*(2*10^{2})$

= $3.6*10^{5}$

So the Answer is A.

8 0

4 years ago

The sum of 1/6, 2/3, and 1/4 is

Oxana [17]

First, make all the denominators same.
Then calculate.
Hopefully this helps :D

3 0

3 years ago

What is the perimeter of this triangle?

Sholpan [36]

Answer:

Step-by-step explanation: what triangle?

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3 years ago

-10+5k^5 write in standard form

Yanka [14]

Answer:

Step-by-step explanation:

How to write numbers in standard form:

Write the first number 8.

Add a decimal point after it: 8.

Now count the number of digits after 8. There are 13 digits.

So, in standard form: 81 900 000 000 000 is 8.19 × 10¹³

7 0

3 years ago

Pls help I don't understand !! !!

NemiM [27]

100cm is equivalent to 1m so 500cm is equivalent to 5m. What you need to do is divide 500cm (5metres) by 25cm (one quarter of a metre). So the number sentence using 'division' should look like 500cm divided by 25cm which equals 20. Don't forget to use proper symbols for division though. Let me know if this helps:)

5 0

3 years ago

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