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December 21, 2014

December 21, 2014

Posted by **HEATHER** on Wednesday, December 30, 2009 at 7:36pm.

- MATH -
**Bun**, Wednesday, December 30, 2009 at 8:47pmLet x be the orders Harry sold

y be the orders McDonal sold

x + y = 60 (1)

and y/x = 3 (2)

s0lve this system x =15, y =45

after increase

H. sold 15+15 =30

Mc. sold 15*6 + 45 = 135

- MATH -
**Reiny**, Wednesday, December 30, 2009 at 8:47pmM = 6H

if each sold 60 more ...

M+60 = 3(H+60)

6H + 60 = 3H + 180

3H = 120

H = 40

M = 240

check: after increase

H = 100

M = 300

is 300 three times 100 ?

check!!

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