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needhelp243435
15.12.2019 •
Mathematics
Aseedman has seeds worth 50¢ per pound mixed with seeds worth 80¢ per pound. if he wishes to make a mixture of 30 pounds to sell at 75¢ per pound, how many pounds of 80 cent seed should he use?
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Ответ:
25 pounds.
Step-by-step explanation:
Let x represent the number of pounds of seeds that worth 80¢.
Let y represent the number of pounds of seeds that worth 50¢.
Based on the information given in the problem, you can set up the following system of equations:
Apply the method of elimination:
- Multiply the first equation by -50
- Add both equations.
- Solve for x.
Then:
Therefore, the answer is: 25 pounds of 80 cent seed should be use.
Ответ:
0.05, 0.2, 0.48, 0.6
Hope it helps