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April 18, 2015

April 18, 2015

Posted by **MzMaria** on Tuesday, September 16, 2008 at 6:00am.

1.Solve by using the substitution method.

a. 8x - 3y =-61

7x + 68 = y What is the solution system _____?

b. 4m + n =27

m - 2n = 9 What is the solution system_______?

c. 8x + 9y = -15

-6x + y = 19 What is the solution System______?

d. 6x + 6y = 36

-4x + y = 21 What is the solution system_______?

2. Solve using the elimination method.

a. x + 7y = 69

-x + 7y = 57 What is the solution system____?

b. 5x + 5y = -13

7x - 3y = 11 What is the solution system____?

c. 9x - 9y = 18

7y - 3x = -8 What is the solution system____?

d. 0.3x - 0.2y = 4

0.4x + 0.3y = -1 What is the solution system_____?

E. 0.05X + 0.25Y = 44

0.15X + 0.05Y = 48 What is the solution system____?

3. The Everton college store paid $1979 for an order of 49 calculators. The store paid $11 for scientific calculator. The others all graphing calculators cost the store $56 each. How man of each calculators were ordered.

The store ordered ____ scientific calculators and ____ graphing calculators.

4Hockey teams receive 2 points when they win and 1 point when they tie. One season a team won a championship with 63 points. They won 9 more games than they tied. How many wins and how many ties did the team have?

How many wins did the team have_____?

How many ties did the team have_____?

- Algebra 116 -
**bobpursley**, Tuesday, September 16, 2008 at 8:33amWe dont do your homework for you. I will be happy to critique your thinking.

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