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pychu [463]
3 years ago
13

The greatest common factor of 3m2n + 12mn2 is

Mathematics
2 answers:
Kamila [148]3 years ago
8 0
3m^2n+12mn^2
In both the sets, 3 and m as well as n can be found as common factors.
So,
3mn( m+4n)


Therefore the answer is 3mn (#3)
Elena L [17]3 years ago
6 0
3m²n + 12mn²
3mn(m) + 3mn(4n)
3mn(m + 4n)

The GCF of 3m²n + 12mn² is 3mn.
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One bar of candy A and two bars of candy B have 774 calories. Two bars of candy A and one bar of candy B contains 786 calories.
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◆ Define the variables:

Let the calorie content of Candy A = a
and the calorie content of Candy B = b

◆ Form the equations:

One bar of candy A and two bars of candy B have 774 calories. Thus:

a + 2b = 774

Two bars of candy A and one bar of candy B contains 786 calories

2a + b = 786

◆ Solve the equations:

From first equation,
a + 2b = 774
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Put a in second equation
2×(774-2b) + b = 786
=> 2×774 - 2×2b + b = 786
=> 1548 - 4b + b = 786
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=> -3b = -762
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Caloric content of candy B = 254 calorie

Caloric content of candy A = a = 774 - 2b = 774 - 2×254 = 774 - 508 = 266 calorie
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