Solve for time. Principle - $400 / Int 5% / simple interest $100
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To solve for time in this simple interest problem, we can use the formula:
Simple Interest = (Principle * Interest Rate * Time) / 100
Given:
Principle = $400
Interest Rate = 5%
Simple Interest = $100
Substituting these values into the formula, we have:
$100 = ($400 * 5 * Time) / 100
Simplifying further, we get:
$100 = (20 * Time) / 100
Cross-multiplying:
$100 * 100 = 20 * Time
10,000 = 20 * Time
Dividing both sides by 20:
Time = 10,000 / 20
Time = 500
Therefore, the time required to earn $100 in simple interest with a principle of $400 and an interest rate of 5% is 500 units of time.
To solve for time in this problem, we can use the formula for simple interest:
Simple Interest = (Principal x Interest Rate x Time) / 100
Given:
Principal (P) = $400
Interest Rate (R) = 5% or 0.05 (decimal form)
Simple Interest (SI) = $100
Substituting these values into the formula, we have:
$100 = ($400 x 0.05 x Time) / 100
To solve for time, we can rearrange the formula as follows:
Time = (100 x $100) / ($400 x 0.05)
Now, we can calculate the value of time:
Time = 10000 / (20)
Time = 500
Therefore, the time required to accumulate $100 in simple interest, with a principal of $400 and an interest rate of 5%, is 500 units of time. The unit of time depends on the context of the problem (e.g., days, months, years).