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Travka [436]
3 years ago
5

Can someone please tell me the steps to find a number four?

Mathematics
2 answers:
Delicious77 [7]3 years ago
5 0
The answer is 21. 
I am not sure if you're looking for the answer, or the steps... get back to me foor help. 

ki77a [65]3 years ago
5 0
21 is correct I hope you pass
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To add 20.4 + 3.75 + 4.25, Crystal first added 3.75 and 4.25. Which property did Crystal use to add mentally?
evablogger [386]

Answer:

Associative Property of Addition

Step-by-step explanation:

From the list of given options, option A correctly answers the question and this is because

a + b + c = a + (b + c) --- (1)

or

a + b + c = (a + b) + c --- (2)

<em>The above illustrations only apply to Associative Property of Addition</em>

In Crystal's case:

20.4 + 3.75 + 4.25 = 20.4 + (3.75 + 4.25)

This can be compared to (1) above

Hence;

<em>Option A answers the question</em>

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3 years ago
A thermometer has a percent error of 3%. The actual temperature is 75°F.
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im also doing this so the guy under me can get brainliest :P


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2 years ago
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What is the value of x in the equation 9/10 (x + 2/3)=4 1/2
garri49 [273]
Get the x variable on one side and the numbers another side.

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Distribute the 9/10 across the x and 2/3.

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Simplify 18/30 to make our life easier.

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Divide both sides by 9/10.

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