Solve each system of equations by the substitution method

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Question 1 - Solve each system of equations by the substitution method.

Question 2 - Write equivalent equations by multiplying both sides of each given equation by the given nonzero number.

-x + y = 10 by 5

Question 3 - Solve each system of equations by the addition method. If a system contains fractions or decimals, you may want to first clear each equation of the fractions or decimals.

Question 4 - The Jonathan Schultz family took a canoe 10 miles down the Allegheny River 1¼ hours. After lunch it took them 4 hours to return. Find the rate of the current.

Let x = rate the family can row in still water and

y = rate of the current

Question 5 - A charity fundraiser consisted of a spaghetti supper where a total of 387 people were fed. They charged $6.80 for adults and half price for children. If they took in $2444.60, find how many adults and how many children attended the supper.

Reference no: EM132365645

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