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katrin2010
[14]
4 years ago
6
The sum of three numbers is 62. The second number is equal to the first number diminished by 4. The third number is four times t
he first. What are the numbers?
Which three expressions could be used to represent the numbers?
Mathematics
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2
answers:
alexdok
[17]
4 years ago
3
0
Let the three numbers be x, y and z respectively, then
x + y + z = 62 . . . (1)
y = x - 4 . . . (2)
z = 4x . . . (3)
The above three expressions could be used to represent the numbers.
Solving the three equations, putting (2) and (3) into (1) gives
x + x - 4 + 4x = 62
6x - 4 = 62
6x = 62 + 4 = 66
x = 66/6 = 11
x = 11.
y = 11 - 4 = 7
z = 4(11) = 44
x = 11, y = 7, z = 44.
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blsea
[12.9K]
4 years ago
3
0
I hope this helps you
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