Use the quadratic formula to find both solutions to the quadratic equation
1 answer:
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The annual rate of interest per year is 8%
<u>Solution:</u>
Given:- Principal (p) = 4600 rupees, Time –Period (t) = 5 years, Total amount(A) = 6440 rupees
First we will calculate the Interest and then using formula of simple interest we will calculate the rate of interest
Interest = Amount – Principal
Interest = 6440 – 4600 = 1840
Now using the formula of simple Interest and on putting values we get,
Where "P" is the principal and "R" is the rate of interest per annum and "T" is the time period
Hence, the required rate of interest per year is 8%
Answer:
Step-by-step explanation:
If W is between X and Y, this means that W is the midpoint of X and Y. The expression XW+WY = XY is therefore true.
Given WX = 6n - 10, XY = 17, and WY = 3n, substituting the given functions into the formula;
6n-10+3n = 17
9n-10 = 17
add 10 to both sides
9n-10+10 = 17+10
9n = 27
divide both sides by 9
9n/9 = 27/9
n = 3
Since WX = 6n-10
substitute n = 3 into the function
WX = 6(3)-10
WX = 18-10
WX = 8
<em>Hence n = 3 and WX = 8</em>
