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Nikolay [14]
3 years ago
15

A chemist mixes a 10% hydrogen peroxide solution with a 25% hydrogen peroxide solution to create 30 liters of a 15% hydrogen per

oxide solution. How many liters of the 10% solution did the chemist use to make the 15% solution?
Mathematics
2 answers:
kupik [55]3 years ago
6 0
The answer is 20 liters.
Alenkasestr [34]3 years ago
5 0

Answer:

the answer is 20 liters

Step-by-step explanation:

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Yes it is. If you convert it to a decimal it will be .8 or .80 (Same thing)


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Using any
makkiz [27]

Answer:

  49

Step-by-step explanation:

  2 quarters

  1 quarter, 2 dimes, 1 nickel

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10 ways without pennies. Pennies can be substituted for any quarter, dime, or nickel, so ...

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8 0
3 years ago
Can someone pls help me
liberstina [14]

Answer:

Tenth: 6.2

Hundredth: 6.16

Thousandth: 6.159

Step-by-step explanation:

***In general, round up when the number is greater or equal to 5. If number is less, round down***

Rounding to the tenths place means that there will be a SINGLE digit following the decimal. <u>Therefore, 6.1592 rounded to the tenths place will be 6.2 because '5' is equal to 5.</u>

Rounding to the hundredths place means that there will be TWO digits following the decimal. <u>Therefore, 6.1592 rounded to the hundredths place becomes 6.16 because '9' is greater than 5.</u>

Rounding to the thousandths place means that there will be THREE digits after the decimal.<u> 6.1592 rounded to the thousandths place becomes 6.159 because the digit to the right of the thousanths place is '2', meaning you round down. </u>The digit in the thousandths place will stay the same.

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ll mean parallel.  I hope this helps

3 0
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kotykmax [81]

Answer:

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Step-by-step explanation:

It is easy to answer this question by visualizing the given values on the number line. Recall that when comparing numbers on the number line, the number on the left is smaller than any number to the right of it, and a number located to the right of another number is the larger one.

The disposition of the numbers given to you (from left to right) should appear like:

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Therefore, the only true statement is the second one, which says that -2 is larger than (>) -5. Notice that in fact, -2 is located on the number line to the right of -5, therefore it is larger (>) than -5

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