Joes, who is the youngest member of the wrestling team at Northwood High school, is 5 years less than one-half the age of the co
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The formula that calculates the compound rate from the given values is
The compound interest formula is:
Where:
- P represents the principal amount
- r represents the compound interest rate
- n represents the number of times the interest is compounded
- t represents the time in years
- I represents the interest
We start by adding P to both sides
Divide through by P
Take the nt-th root of both sides
Subtract 1 from both sides
Multiply through by n
In this case, t = 10
So, we have:
Hence, the formula that calculates the compound rate is
Read more about compound interest at:
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Answer:
x=3
Step-by-step explanation:
The approach is not very different from regular fractions.
You have to get to a common denominator to be able to add them.
10 is a good denominator (multiply the denominators).
multiply the first term by 5, and the second one by 2:
7x + 9 = 30
7x = 30 - 9
x = 3
let me know if you need more details on one of the steps