Abag contains only 50 cent coins and $1 bills. the total amount of money in the bag is $36. if there are twice as many 50 cents coins as $1 bills, how many 50 cents coins are in the bag?

The total number of 50 cent coins in the bag = 36.

Step-by-step explanation:

Let x be the number of 50 cents coins and y be the number of $1 bills.

We have been given that the total amount of money in the bag is $36. We can represent this information as:

We are also told that there are twice as many 50 cents coins as $1 bills. We can represent this information as:

Now we will use substitution method to solve our given system of equations. Upon substituting equation (2) in equation (1) we will get,

Now let us substitute y=18 in equation (2) to find our x.

Therefore, there are 36 fifty cent coins in the bag.

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.