Andy had 20% fewer marbles than Henry. When Andy gave 80 marbles to Henry, the number of marbles he had left was half of what Henry had. How many marbles did Andy have in the beginning?
please help me
160
but how did u get the answer
wait i did that wrong...sorry i read the question wrong!
To solve this problem, we can use a system of equations. Let's break it down step by step:
Let's assume that Henry had x marbles in the beginning.
According to the problem, Andy had 20% fewer marbles than Henry. This means Andy had (100% - 20%) = 80% of Henry's marbles.
So, Andy had (80/100)x marbles in the beginning.
After Andy gives 80 marbles to Henry, Andy is left with half the number of marbles Henry has.
So, the equation becomes:
((80/100)x - 80) = (1/2)(x + 80)
Now, we can solve the equation to find the value of x, which represents the number of marbles Henry had in the beginning.