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nataly862011 [7]
3 years ago
13

Write 10ab + 15b in factored form.

Mathematics
2 answers:
Mazyrski [523]3 years ago
7 0

Answer:

Step-by-step explanation:

from this equation you can see that you can pull out a 5b from the equation. This would give you  

5b(2a+3)  

As you can see, you can't go any further. To check yourself and make sure the equation is factored correctly, you can distribute 5b back into 2a and 3. This will leave you with the original equation, 10ab+15b. Good luck!

Evgen [1.6K]3 years ago
3 0

Answer:

5b(2a+3)

Step-by-step explanation:

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Read 2 more answers
phyllis invested 66000 dollars, a portion earning simple interest rate of 5% per year and the rest earning a rate of 7% per year
Lelechka [254]

<u>Answer: </u>

Physliis invested 32000 dollar at 5% interest rate and 34000 dollar at 7% interest rate.

<u>Solution:</u>

Let Phyllis invest ‘x’ dollar at 5% per year and (66000-x) dollar at 7% per year.

We know,

\text { Simple interest }=\frac{\text {Principal} \times r a t e \times T i m e}{100}

In the question it is given that Simple interest earned from both the investments at the end of the year is $3980.

Using the given below equation, we will try to find out the investments at each rate.

\begin{array}{l}{\frac{x \times 5 \times 1}{100}+\frac{(66000-x) \times 7 \times 1}{100}=3980} \\\\ {\frac{5 x}{100}+\frac{462000-7 x}{100}=3980} \\\\ {\frac{5 x+462000-7 x}{100}=3980} \\\\ {-2 \mathrm{x}+462000=3980 \times 100} \\\\ {-2 \mathrm{x}=398000-462000} \\\\ {-2 \mathrm{x}=-64000} \\\\ {\mathrm{x}=\frac{-64000}{-2}}\end{array}

x = 32000

We can calculate amount for 7% interest rate by,

(66000-32000) =34000

Thus Phyllis invested 32000 dollar at 5% interest rate and 34000 dollar at 7% interest rate.

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Answer:

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Step-by-step explanation:


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Answer:

Exact Form:

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Decimal Form:

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Step-by-step explanation:

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3 years ago
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