x + 4y = 39
A. x = 10, y = -1
B. x = -1, y = 10
C. x = 2, y = 11.2
D. x = 8, y = 7.75
X*-6x-7=0
The greatest common factor of numbers 15 and 30 would be 15.
Given that,
The two numbers are 15 and 30.
Used the concept of the greatest common factor that states that,
The GCF is defined as the largest number that is a factor of two or more numbers.
For example, the GCF of 24 and 36 is 12, because the largest factor that is shared by 24 and 36 is 12.
Here, The two numbers are 15 and 30.
Now, the factors of 15 and 30 are,
Factors of 15: 1, 3, 5, 15
Factors of 30: 1, 2, 3, 5, 6, 10, 15
Clearly, the largest factor that is shared by 15 and 30 is 15.
Therefore, GCF (15, 30) = 15
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