anonymous
  • anonymous
Can someone help me with this. A mixture of 30 lbs. of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of each kind were used to make the mixture? ___ lbs. of $1.50 chocolates and ____ lbs. of 90¢ chocolate
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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baldymcgee6
  • baldymcgee6
okay, so the bag of 30 lb candy will cost how much total?
anonymous
  • anonymous
1.10
baldymcgee6
  • baldymcgee6
the candy is worth 1.10 per lb, we have 30lbs of it, so therefore, 30lb * $1.10 per lb = $33.00

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baldymcgee6
  • baldymcgee6
Does that part make sense?
anonymous
  • anonymous
15x+33=270-9x
anonymous
  • anonymous
yes it does
baldymcgee6
  • baldymcgee6
lets try it this way, x + y = 30 lb $1.5x + $0.90y = $33.00
baldymcgee6
  • baldymcgee6
Does that part now make sense?
anonymous
  • anonymous
yes
baldymcgee6
  • baldymcgee6
Do you know how to solve it?
anonymous
  • anonymous
are we solving for x
baldymcgee6
  • baldymcgee6
Well, we have to equations, we will use the method of sub substitution to solve them. Since we have two unknowns (x and y), we need two equations to solve the system. x + y = 30 lb Solve for x x = 30 - y Now we know what x is in terms of y, so lets sub that into our second equation. $1.5y + $0.90x = $33.00 $1.5y + $0.90(30 - y) = $33.00 Now we must solve for y

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