Given the simple interest formula:
I = P•R•T
where:
I = interest
P = principal
R = interest rate
T = time (in years)
We can isolate R algebraically to find out the interest rate:
I = P•R•T
Divide both sides by P•T:
I / (P•T) = (P•R•T)/(P•T)
The formula for the interest rate is:
R = I / (P•T)
Substitute the given values into this formula to solve for the interest rate (R):
R = I / (P•T)
R = $490/ ($1,400 • 5 years)
R = $490 / $7,000
R = 0.07 or 7%
Therefore, the interest rate is 7%.
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Answer:
150*2/3=100
take school size then multiply it by the ratio to get the amount of student who prefer such toothpaste.
Step-by-step explanation:
Answer:
390625
Step-by-step explanation:
The questions are all independent -- the answer on one question does not limit the number of possible answers on another question.
The quiz has 5 choices for each question, so there are
ways to answer the quiz questions.
Notice that this could be written
. You could say that the number of ways to answer the questions is

Use a calculator to find 
Answer:
<h2>The answer is 10</h2>
Step-by-step explanation:
The formula for finding the combination of two given positive numbers is given by
<h3>

</h3>
Where n and r are positive numbers
From the question we have
5 C 3
<u>Simplify</u>
That's
<h3>

</h3>
We have the final answer as
<h3>10</h3>
Hope this helps you
Answer:
12
Step-by-step explanation:
hope it helps