Jerry earned $18,500 one year and then received a 10.5% raise. What is his new yearly salary?
Yi Chen made a $6,400 investment at the beginning of a year. By the end the year,the value of the investment had decreased by 8.2%. What was its value at the end of the year
Multiply $18,500 by 0.105 to find the amount of the raise. Add this raise to $18,500 to find the new salary.
In the second problem, multiply $6,400 by 0.082 to find how much it decreased. Then subtract.
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To calculate Jerry's new yearly salary after receiving a 10.5% raise, you need to add the raise amount to his previous salary.
Step 1: Calculate the raise amount by multiplying Jerry's previous salary ($18,500) by the raise percentage (10.5% written as 0.105):
Raise amount = $18,500 × 0.105 = $1,942.50
Step 2: Add the raise amount to Jerry's previous salary:
New yearly salary = $18,500 + $1,942.50 = $20,442.50
Therefore, Jerry's new yearly salary after receiving a 10.5% raise is $20,442.50.
For Yi Chen's investment, to calculate its value at the end of the year after a decrease of 8.2%, you need to subtract the decrease amount from the initial investment.
Step 1: Calculate the decrease amount by multiplying the initial investment ($6,400) by the decrease percentage (8.2% written as 0.082):
Decrease amount = $6,400 × 0.082 = $524.80
Step 2: Subtract the decrease amount from the initial investment:
Value at the end of the year = $6,400 - $524.80 = $5,875.20
Therefore, Yi Chen's investment had a value of $5,875.20 at the end of the year after a decrease of 8.2%.