# Tutor profile: Jeeva V.

## Questions

### Subject: Pre-Algebra

7+2 + (5 + 3) ÷ 2 + 2=

To tackle this problem, it is important to remember the order of operations. An acronym is PEMDAS, or Parantheses, exponents, multiplication/division, addition/subtraction (Multiplication and division are at the same level, and addition and subtraction are at the same level). According to PEMDAS, we first evaluate the (5 + 3) in the parantheses. 5 + 3=8, so rewriting the problem, we get 7 + 2 + 8 ÷ 2 + 2 Next, we evaluate the division. 8 ÷ 2=4. so rewriting our problem, we get 7 + 2 + 4 + 2 We are finally left with all addition, so we can add everything together. 7 + 2 + 4 + 2= 15

### Subject: Basic Math

22+14=

22 is the same thing as 2 "tens" and 2 "ones". 14 is the same as 1 "ten" and 4 "ones". Putting this in mathematical form gives us: 22 + 14 First, add the "ones". 4+2=6 this can be found using a number line Next, add the "tens". 2+1=3 now putting the "tens" and "ones" together gives us 36.

### Subject: Algebra

The cost of a shirt increased from $10 to $15. By what percent did the price increase?

I like to recreate the question to make it easier to put into an equation. Because the price increased by $5 (15-10), the question is basically asking "what percent of 10 is 5?". Percent is the ratio of something out of 100. so to create this equation, we must figure out what 5/10 is equal to when the denominator is 100. Putting this in mathematical form, we get (5/10)=(x/100) It is important to remember that whatever operation is done to one side, must be done to the other. To solve for X, we must multiply both sides by 100. (5/10)*100=(x/100)*100 After completing this operation we get x=500/10 or x=50. So the answer is the price increased by 50%.

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