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anonymous
 4 years ago
Solving for 3 variables questions :o help!
Solve the system by elimination 1: x+5y4z=10, 2xy+5z=9, 2x10y5z=0 .
2. Solve the system by substitution: 2xy+z=4, z=5, 2x+3yz=10.
3. A food store makes a 11–pound mixture of peanuts, almonds, and raisins. The cost of peanuts is $1.50 per pound, almonds cost $3.00 per pound, and raisins cost $1.50 per pound. The mixture calls for twice as many peanuts as almonds. The total cost of the mixture is $21.00. How much of each ingredient did the store use?
anonymous
 4 years ago
Solving for 3 variables questions :o help! Solve the system by elimination 1: x+5y4z=10, 2xy+5z=9, 2x10y5z=0 . 2. Solve the system by substitution: 2xy+z=4, z=5, 2x+3yz=10. 3. A food store makes a 11–pound mixture of peanuts, almonds, and raisins. The cost of peanuts is $1.50 per pound, almonds cost $3.00 per pound, and raisins cost $1.50 per pound. The mixture calls for twice as many peanuts as almonds. The total cost of the mixture is $21.00. How much of each ingredient did the store use?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0options for the 1st one are : (5, –1, 0) (–5, 1, 0) (–5, –1, 0) (–5, –1, –2) Options for the second are: (–8, 7, 5) (–8, –7, 5) (8, –7, 5) (–8, –7, –5) And the 3rd : 3 lbs peanuts, 6 lbs almonds, 2 lbs raisins 8 lbs peanuts, 1 lb almonds, 2 lbs raisins 6 lbs peanuts, 3 lbs almonds, 2 lbs raisins 8 lbs peanuts, 2 lbs almonds, 1 lbs raisins
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