30x = 6
x = 1/5 years @ 2 months 2/5 days
Solving the system we get, x= -1, y= -2 and z= 0
Step-by-step explanation:
Solving the equations to find x, y and z
Adding eq(1) and eq(2)
Adding eq(2) and eq(3)
Multiplying eq(4) by 3 and eq(5) by 2
So, value of z =0
Putting value of z in eq(4)
So, value of x = -1
Now putting value of z=0 and x =-1 in equation 1
So, value of y = -2
So, solving the system we get, x= -1, y= -2 and z= 0
Keywords: Solve the system
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The answer to this question would be: No, they can't
Greatest common factor biggest possible value is the number value itself. There is no factor that bigger than the number.
But the least common multiple smallest possible value is the number. There is no multiple that smaller than the number.
So it is not possible to have GCF bigger than LCM.
Answer:
Mean: 6.29
Median: 7
Mode: 8
Range: 6
Step-by-step explanation:
I just took the quiz
2x+y=9
3x+5y=19
I will do this problem in 2 ways. I.)Substitution II.)Elimination
Solution I.) Substitution
We can subtract 2x from both sides in the first equation.
y=9-2x
Now we can substitute the y in the second equation with 9-2x
3x+5(9-2x)=19
-7x+45=19
-7x=-26
x=26/7
y=9-2(26/7)=11/7
Solution II.)Elimination
We can multiply both side of first equation by 5 to get a 5y in both equations.
10x+5y=45
Now because both are positive 5y we just need to do simple subtraction of the 2 equation, each side respectively.
(10x+5y)-(3x+5y)=45-19
7x=26
x=26/7
2*26/7+y=9
y=11/7
Ultimately you get the same answer, both are viable methods, some problems are faster with one method but I recommend mastering both since they are very useful.
