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Naya [18.7K]
3 years ago
7

A chemist is using 382 milliliters of a solution of acid and water. If 13.4% of the solution is acid, how many milliliters of ac

id are there? Round your answer to the nearest tenth.
Mathematics
2 answers:
Bess [88]3 years ago
8 0

Answer:

51.2 milliliters

Step-by-step explanation:

In order to find the percentage of something, we multiply the original amount by the decimal form of the percent. For example, 13.4% here would become 0.134.

382*0.134 = 51.188

Rounded to the nearest tenth, our answer is 51.2 milliliters

ch4aika [34]3 years ago
5 0
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What is the greatest value 20g of flour 3 for 3.50 or 40g of flour for 2 for 9£ which is better for money
jenyasd209 [6]

Answer:

It is better to buy 20 g of flour 3 for 3.50

Step-by-step explanation:

It is given that 20g of 3 for 3.50

It means 3 packets of 20 g is 3*20 =60

So, 60g  is for 3.50

So, 1 g =\frac{3.5}{60}=0.05833 per gram.

Now, let's find unit rate for 40 g of 2 for 9.

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So, 80 grams costs 9

So, 1 gram =\frac{9}{80} =0.1125

So, it is better to buy 20 g of flour 3 for 3.50

4 0
2 years ago
18x + 9y use the distributive property to write an equivalent expression
kirza4 [7]
Hey there!
It looks like you have another factoring question!
Using our definition of the distributive property:
a(b+c) = ab+ac
We need to factor our or greatest common multiple, which here is 9.
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We have:
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3 years ago
Just tell me the coordinates
ale4655 [162]
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20 square root of 270 /4 square root of 3
OleMash [197]

Answer:

<u>The most simplified form is 15√10</u>

Step-by-step explanation:

1. Let's simplify the expression:

20√270 ÷ 4√3

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60 √30/ 4√3

(60 √3 * √10) / 4√3 (√30 = √3 * √10)

60/4 √10 ( We cancel √3 in the numerator and in the denominator)

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