-9n plus 9n is zero 3-8 is -5
Answer:
16
Step-by-step explanation:
The common ratio is 36/54 = 2/3.
So the next term is 2/3 (24) = 16.
Answer:
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.
Step-by-step explanation:
the first step is to find the cost price
when 20% discount=
11250*80/100= 9000
the 20% discounted price is 9000
there is still a 20% profit in this 20% discount
so Cost.Price *120/100=9000
Cost price= 7500
now its asking for discount percentage at 3% profit so first calculate price after 3% profit
7500*103/100= 7725
so discount on rs11250 required to produce 3% profit=
11250*x/100=7725
x= 68.7% discount
The student on the left end of the row can be any one of 30.
For each of those ...
The student in the next seat can be any one of the remaining 29.
For each of those ...
The student in the next seat can be any one of the remaining 28.
For each of those ...
The student on the right end of the row can be any one of the remaining 27.
The total number of ways to pick 4 students and seat them in the front row is
(30 x 29 x 28 x 27) = <em>657,720 ways.</em>
That's enough to do it a different way every school day for about 3,600 years !
(or until they all graduate, whichever comes first)