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myrzilka [38]
3 years ago
11

If 20 is increased by 50%, what is the new amount?

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
6 0
Hello!

New value =

20 + Percentage increase =

20 + (50% × 20) =

20 + 50% × 20 =

(1 + 50%) × 20 =

(100% + 50%) × 20 =

150% × 20 =

150 ÷ 100 × 20 =

150 × 20 ÷ 100 =

3,000 ÷ 100 =

30;
<span>20 increased by 50% = <span>30 </span>
<span>Absolute change (actual difference): <span>30 </span>- 20 = 10


Hope this Helps! Have A Wonderful Day! :)</span></span>
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Rena spent 6 days reading her book completing the same fraction of the book each day if she had a total of 8/9 of her book after
Artyom0805 [142]

Answer:

The fraction of the book that Rena read every day is \frac{4}{27}

Step-by-step explanation:

Rena spent 6 days reading her book completing the same fraction of the book every day and you want to know the fraction of the book she read each day. Knowing that Rena had a total of 8/9 of her book read after 6 days, then you simply divide the total amount of the book read during those days by 6, the number of days:  

\frac{8}{9}÷6

To divide a fraction by a whole number, you must convert the whole number into a fraction, finding the reciprocal of that fraction, and multiply it by the first fraction. That is, you must find the reciprocal of the number that is after the division symbol; and then you multiply the first number (the one before the division symbol) by the reciprocal of the second number (the one after the division symbol). Remember that to find the reciprocal of a number, you simply have to change the numerator and denominator of the number.

Since 6 can be considered to be a fraction equal to \frac{6}{1}, by inverting the number, then you get \frac{1}{6}

Then:

\frac{8}{9}÷6= \frac{8}{9} *\frac{1}{6}

Now you multiply the numerators and denominators of the fraction to get the new numerator and denominator of the final solution.

\frac{8}{9}÷6= \frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}

Finally, simplifying the fraction:

\frac{8}{9}÷6= \frac{8}{9} *\frac{1}{6}=\frac{8*1}{9*6} =\frac{8}{54}=\frac{4}{27}

So:

\frac{8}{9}÷6= \frac{4}{27}

<u><em>The fraction of the book that Rena read every day is </em></u>\frac{4}{27}<u><em></em></u>

3 0
3 years ago
3. What is the solution to the equation 3x = 15? Express the
ivanzaharov [21]

Answer:

x=2.4650

Step-by-step explanation:

I assume that you mean 3^x=15

so let s use the ln() function

ln(3^x)= xln(3)=ln(15)

so x = ln(15)/ln(3)

x = 2.4650

4 0
3 years ago
What is the solution set to the following system?
elena-s [515]
The correct answer is C
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3 0
3 years ago
I have a roof that measures 175 ft by 45 ft. During the hurricane 11 inches of rain fell.
Nikolay [14]

Answer:

  4.1 billion

Step-by-step explanation:

1 ft = 30.48 cm

1 in = 2.54 cm

The volume of rain that fell on the roof is given by ...

  V = LWH

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At 20 drops per cm³, this will be ...

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About 4.1 billion raindrops fell on your roof.

5 0
2 years ago
How many cups are in a gallon
Digiron [165]
1 cup: 8 oz
1 pint: 2 cups
2 pints: 1 quart
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by looking at this scale you will multiply the needed #s:
2 times 2 = 4    4 times 4 = 16 so there are 16 cups in a gallon 
6 0
3 years ago
Read 2 more answers
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