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Viktor [21]
3 years ago
11

You have 45 pencils. Five out of every 9 are yellow pencils and the rest are brown. How many pencils are yellow?

Mathematics
2 answers:
Aleks [24]3 years ago
5 0

Five out of every nine pencils are yellow. You can make a fraction for this:

\frac{5}{9}

You have 45 pencils. To find the amount of yellow pencils, multiply the fraction by 45. First set up the equation:

\frac{5}{9} \times 45

Make 45 as a fraction so that you'll be multiplying fractions together. It will also make it easier.

To write a whole number as a fraction, <em>ALWAYS</em> make the whole number the denominator and 1 as the numerator.

45 \rightarrow \frac{45}{1}

Here is the "new equation":

\frac{5}{9} \times \frac{45}{1}

Multiply. You multiply the numerators and denominators together.

\frac{5}{9} \times \frac{45}{1} =\frac{225}{9} = 25

That means <u>25</u> pencils are yellow

Mandarinka [93]3 years ago
5 0

5/9 * 45/1 is 25

25 pencils are yellow hope this is helpful, have a good day! :D

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The population in a small town is increasing annually by 1.8%. What is the quarterly rate of population increase
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Evelyn took a job that paid $100 the first week. She was guaranteed a raise of 2% each week. How much money will she make in all
Zanzabum
This is a growth exponential equation. 
It can be solved 2 ways, but one of them is long and cumbersome and not worth the effort. You could take 2% of the base number and keep doing it 8 times. 

The other way is to realize that 100$ + 2% of 100 dollars can be written as 2% = 2/100 = 0.02 and that can be written as
100( 1 + 0.02 ) = 100(1.02) Now if you want this to be raised 8 times, it will look like this
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Comment
Realize that if her boss does not want to give her compounded interest that she could still make
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L_{8} = 100 + 7*0.02*100 = 100 + 14. = 114
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6 0
3 years ago
Find all rational roots for p(x)=0
Olenka [21]

Answer

C. (5/2, -1/3)

Step by step explanation

Here we use the rational root theorem.

The possible roots are

+1, +3, +5, +15, +1/2, +3/2, +5/2, +15/2, +1/3, +5/3, +1/6 and +5/6

We have to use the synthetic division to find the correct root of this function.

Here the roots are 5/2 and -1/3

Others are not roots of this function.

Let's check x = 5/2  with synthetic division.

5/2)   6   -13   13   -39   -15

-               15    5    45    15

           --------------------------

             6     2   18     6     0

Similarly x = -1/3 is also root of this function.

Answer: C. (5/2, -1/3)


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and yh

Step-by-step explanation:

2×2×2×3×3

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