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Unformatted text preview: 2x+73 =y 2x+73+x=205 3x+73=205 3x=205-73 3x=132 x=44 205-44=161 y=161 Non-smoking Section Seats=161 Smoking Section Seats=44 3. Solve the system of equations by the substitution method x + 3y = 32-3x + 2y = 3 x = 32 – 3y-3(32-3y)+2y=3-96+11y=3 11y = 3 + 96 11y = 99 y = 99/11 y = 9 x + 3(9) = 32 x+27=32 x=32-27 x=5 4. Solve the system of equations x + y = 5 x - y = -9 2x=-4 x=-4/2 x=-2 -2+y=5 y=5+2 y=7 5. Ricks Paint Store sells a special shade of pink paint (Ricky's Blush) which can be made from red paint and white paint. The amount of red paint should be three times the amount of white paint. How much of each kind of paint is needed to make 264 gallons of Ricky's Blush? r=Red Paint w=White Paint r=3w r+w=264 3w+w=264 4w=264 w=264/4 w=66 r+66=264 r=264-66 or r=3(66) r=198...
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This note was uploaded on 10/15/2011 for the course BUS BUS306 taught by Professor Dr.jolantaauden during the Spring '11 term at Trident Technical College.
- Spring '11