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2 years ago

Find the product. (s + t)(5s – 7t)

Mathematics

2 answers:

nevsk [136]2 years ago

7 0

Answer and Step-by-step explanation:

Distribute the s, then distribute the t, then finally simplify.

$5s^2 - 7st\\5st - 7t^2\\\\5s^2 - 7st + 5st - 7t^2\\\\5s^2 - 2ts = 7t^2$ <-- This is the answer.

#teamtrees #PAW (Plant And Water)

joja [24]2 years ago

6 0

Answer:

5s^2 - 30st - 7t^2

Step-by-step explanation:

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George had $6,000 in a savings account earning simple interest at a rate of 5% per year. At the end of the year, George paid 25%

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Answer:

$225

Step-by-step explanation:

Given that:

Principal = $6,000

Interest rate = 5%

Time = 1 year

Taxes paid = 25% on the interest earned

To find:

Money earned after paying taxes ?

Solution:

First of all, let us calculate the total interest earned:

Formula for Simple Interest is given as:

$SI =\dfrac{PRT}{100}$

Where P is the principal

R is the rate of interest

T is the time taken

Putting the given values:

$SI =\dfrac{6000 \times 5\times 1}{100} =\$300$

Now, it is given that 25% of the interest earned is given as taxes.

Taxes paid = 25% of $300

$\Rightarrow \dfrac{25}{100} \times 300 =\$75$

Therefore, the money earned = Interest earned - Taxes paid

The money earned = $300 - $75 = $225

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