Given:
Amount = 8700
Time = 3 years
Rate of interest = 24% per annum
To find:
The principal values.
Solution:
Formula for amount:
Where, A is amount, P is principal, r is the rate of interest and t is the number of years.
Putting , we get
Divide both sides by 1.906624.
Therefore, the principal value is about 4563.04.
we know that
The x-intercept is the value of the variable x when the value of the function is equal to zero
so
In the table we have
is a x-intercept, because
For the value of the function is equal to zero
is a x-intercept, because
For the value of the function is equal to zero
therefore
<u>the answer is</u>
the continuous function in the table has two x-intercepts
We know that
• Lashonda purchased a prepaid phone card for $20.
,• Long-distance calls cost 8 cents a minute.
,• The remaining credit on her card is $17.12.
This problem can be expressed as
Where <em>x</em> is the number of minutes.
We solve the equation for <em>x</em>
Then, we divide by -0.08 the equation