SOLUTION: Please help me solve this word problem:
If 5 times the first number plus three times the second number equals 47, and 10 times the first number minus 4 times the second number e
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If 5 times the first number plus three times the second number equals 47, and 10 times the first number minus 4 times the second number e
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Question 234266: Please help me solve this word problem:
If 5 times the first number plus three times the second number equals 47, and 10 times the first number minus 4 times the second number equals 54, what are the numbers?
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You can put this solution on YOUR website! If 5 times the first number plus three times the second number equals 47, and 10 times the first number minus 4 times the second number equals 54, what are the numbers?
Let x = first number
Let y = second number
>>...5 times the first number plus three times the second number equals 47...<<
That says
>>...5 times x + 3 times y = 47...<<
Or 5x + 3y = 47
>>...10 times the first number minus 4 times the second number equals 54...<<
That says:
>>...10 times x minus 4 times y = 54...<<
Or 10x - 4y = 54
So you have the system of equations:
Can you solve that? If not, post again asking how.
Answer: first number = 7, second number = 4
Edwin