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guapka [62]
3 years ago
8

How would I find 10% of 30 by using a proportion?

Mathematics
2 answers:
mamaluj [8]3 years ago
6 0
Set up an proportion first. It looks like this:

Part Percent
————— = —————
Whole 100%
10 is your percent, 30 is your whole, 100 is always 100, and you don’t know the part so it is x (unknown).
It now looks like this:
X 10
————— = —————
30% 100%

Step by step explanation:

1) multiply across
30 • 10 = 300

2) divide what’s left over
300 / 100 = 3
So 10% of 30 is 3.
Zepler [3.9K]3 years ago
3 0

10% × 30 =

(10 ÷ 100) × 30 =

(10 × 30) ÷ 100 =

300 ÷ 100 =

3;

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Answer: See explanation

Step-by-step explanation:

Your question isn't complete but let me give different scenarios to help you solve.

Firstly, assuming we want to calculate the amount of items left after the large items are carried alone, this will be:

= 561 - 36

= 525

Secondly, if we want to know the percentage of the large items that will be carried alone. This will be:

= 36/561 × 100.

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Thirdly, if you want to know the percentage of the items that will be left after the large ones have been carried alone. This will be:

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5 0
3 years ago
Which of the following sets of numbers could represent side lengths of a right triangle?
yawa3891 [41]

Answer:

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Step-by-step explanation:

6m,8m,10m represent side lengths of a right triangle.

Proof :

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<u>proved</u>

6 0
2 years ago
I need help with this question
postnew [5]

Answer:

61 cm for each book shelf.  

Step-by-step explanation:

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7 0
4 years ago
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enot [183]

3n -10 ≥ 2

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Step-by-step explanation:

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