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Tutor profile: Mehmet K.

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Mehmet K.
Certified math teacher and tutor with 7 years experience in Ohio/US.
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Questions

Subject: Pre-Algebra

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Question:

William Wallace bought 6 containers of yogurt for $7.68. Write an equation relating the cost c to the number of yogurts y. How much would William pay for 10 yogurts at this same rate?

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Mehmet K.
Answer:

Find the unit rate between cost and containers of yogurt. Cost in dollars/containers= 7.68/6 = or $1.28 per container. The cost is $1.28 times the number of containers of yogurt. c=1.28y let "c" represent the cost. Let "y" represent the number of yogurts. =1.28(10) Replace "y" with "10". =12.80. Multiply. The cost of 10 containers of yogurt is $12.80.

Subject: Basic Math

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Question:

In a recent season, St.Pederson Cardinals first baseman William Wallace had 175 hits in 530 at bats. To the nearest thousandth, find his batting average.

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Mehmet K.
Answer:

Solution; To find his batting average, divide the number of his hits,175, by the number of at bats, 530. 175:530=0.3301886792 Look at the digit to the right of the thousandths place. Since 1<5, round down. William Wallace's batting average was 0.330.

Subject: Algebra

TutorMe
Question:

Willam Wallace would like to go to the movie theater to see the latest movie of Harry Potter with his friends. He already paid $3 for parking fees before they entered the theater. Also, each ticket will cost $13 per person. He spent $68 out of his pocket. How many friends of William did go to the movie theater with him? Please set up an equation with giving data and solve the problem!

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Mehmet K.
Answer:

Before started to solve the problem, realized that this question covers the lesson of y=mx+b (slope-intercept form). Step-1(Find slope=m and y-int=b;) Since unit rate for tickets is $13, slope(m)=13 Also, y-int=b represents an initial value or a starting point or the point crosses the y-axis which is parking fee=$3 (already paid this amount) x-values represent #of people. y-values represent total cost. (money) Step-2(Write the equation); Let's write the equation with giving slope and y-int. y(total cost)= 13x+3 Step-3(solve the equation); since the total cost is $68, y=68. Replace 68 with y in the equation. The equation looks like: 68=13x + 3. The question asks us to find the # of people who went to the movie theater which is X value. We need to find x by solving this two-step equation. Subtract 3 both sides of the equation to cancel number next to the variable: 68-3=13x+3-3 And divide both sides by 13 to get the variable: 65:13=13x:13 Finally; 65:13. x=5; this means a total of 5 people went to the theater including William. Solution: Besides William, 4 friends of him went to the movie theater.

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