If n is used as the initial amount of liquid in both A and B:
4(n-120) = n+120
4n-480 = n+120
3n = 600
n = 200
Each container originally held 200ml. Container A now has 80ml and Container B has 320ml
Step-by-step explanation:
because we can also find out the value of x in second equation like this
3x=21
x=21/3
x=7
<span><span>x=<span><span><span>20</span></span><span><span><span>(y−3)</span><span><span>2</span><span></span></span></span></span><span></span></span>−1</span><span>
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bearing in mind, "t" is in years, 6months is just 1/2 year
solve for "r", you'd get a decimal amount, multiply times 100, to get the percentage form