How can we solve the equation 6a = 18?
2 answers:
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Answer:
2x−5y=12
y = 2/5x + −12/5
Answer is x = 5/2y + 6 because....
First, Add 5y to both sides.
2x − 5y + 5y = 12 + 5y
Then, Divide both sides by 2.
Therefor, your answer is going to be x = 5/2y + 6
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We are given to check
whether these numbers are proportional
we know that any set of numbers are proportional when their ratios are equal
so, firstly we will ratios
First set of numbers:
We are given first set of numbers as 15 , 20 and 30
so, it's ratio is
now, we can simplify it
Since, common factor is 5
so, we can cancel 5
and we get
Second set of numbers:
We are given first set of numbers as 24 , 32 and 48
so, it's ratio is
now, we can simplify it
Since, common factor is 8
so, we can cancel 8
and we get
We can see that both sets of numbers are having same ratios
so, they are proportional.........Answer