Algebra Questions

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Algebra is the main branch of Mathematics which involves the relationship of numbers and the variables. There are different types of topics covered under Algebra. They are quadratic equations, linear equations in one or more variables, logarithmic and exponential functions, fractions etc.
We use different types of formulas to solve the algebra questions. The algebra questions can be solved in an easy way by simply applying the formulas that are given to us. Following are some of the examples which are based on this concept.

Example 1: John worked 22 hours this week and made $132. If he works 15 hours next week at the same pay rate. How much will he make?

Solution: Number of hours John worked in First week = 22 hours

Number of dollars made in first week = 132 dollars

Pay rate = Money gained/ Working hours = 132/22 =  6 Dollars per hour
 
Number of hours John worked in the next week = 15 hours

The Amount of money made by John = (Number of working hours) times (Pay rate)

 = (15) times (6)

  = $90.
                    
Example 2: Alma wants to invest $4,000 at 6% simple interest rate for 5 years. How much interest will she receive?

Solution: The amount = P = $4000

 R = 6 %

 T = 5 years

 We have a formula to find the simple interest that is

Simple interest = PRT/100

Now we can plug the values into this formula

Simple interest = 4000 * 6 * 5/100 = $1200
 

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