A bicycle lock has three reels, each of which contains the numbers 0 through 9. To open the lock, you must enter the numbers in the correct order, such as 369 or 455, where one number is chosen from each reel. Explain how many different possibilities there are for the numbers to open the lock.

Q: Rafael has 5 pairs of pants and 10 pairs of shorts. How many possible ways can he choose what to…

A:

Q: One monday, 202 students went on a trip to the zoo. All four buses were full and six students had to…

A: Total students=202 Students traveled by car=6

Q: nathan will place 81 napkins on tables. There are nine tables and he placed the same number on each…

A:

Q: A school has 3 computer labs with 9 computers in each. How many computers are there in the school?

A: A school has 3 computer labs with 9 computers in each. We need to find how many computers are there…

Q: Joanna was driving from Fresno to Bakersfield. Because it was a business meeting, she would be…

A: Let the distance from Fresno to Bakersfield = x miles When she left Fresno, she noted that her…

Q: From the ten books that you’ve recently bought but not read, you plan to take four with you on…

A: From the ten books that you’ve recently bought but not read, you plan to take four with you on…

Q: Set B pages 393-396, 397-400 A 4-foot board is cut into pieces that are foot in length. How many…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A visitor to a petting zoo notices there are a total of 20 llamas and chickens. She also notices…

A: In the petting zoo there are total 20 chickens and llamas. Consider that x represents the number of…

Q: Anna must choose a four-digit PIN number. Each digit can be chosen from 0 to 9.  How many different…

A: It is given that, Anna must choose a four-digit PIN number. and Each digit can be chosen from 0 to…

Q: In a batch of 500 high school students, there are 252 students who own a laptop, 176 students who…

A: Here we can use the formula nU = nA+nB-nA∩B+nA∪B'

Q: There are thirty-one rose bushes and nineteen walnut trees currently in the park. Park workers will…

A: As per the given data  There are 31 rose bushes in the park currently. There are 80 rose bushes in…

Q: A paper factory needs to ship an order for 3,200 sheets of yellow paper. The factory will put 40…

A: Number of sheets of paper = 3200 Number of sheets in a box  =     40 Number of boxes needed for 3200…

Q: Jill needs to make a password for her email account. The password must be all digits and contain…

A:

Q: In the Americas, automobile license plates contain two letters, followed by four digits. How many…

A: Given,no.of letters=26no.of digits(0 to 9)=10

Q: A diver starts out at 337 feet below the surface (or -337 feet). She then swims upward 209 feet. Use…

A: topic - numbers

Q: A pet store employee counts 23 heads and 68 feet on the animals in the store. The store currently…

A: Use the given information.

Q: A disc jockey has 7 songs that he must play in a half-hour period. In how many different ways can he…

A: He can pick first song in 7 ways Second song in 6 ways Third song in 5 ways and so on.7th song in 1…

Q: a card store received a shipment of 12 cartoons of sports cards . Each cartoon contains 20…

A:

Q: As part of the final project in her graphics design course, Serena used calligraphy to illustrate…

A: Given,     Serena made a final project in her graphic design course,     Also, Serena used…

Q: Decide the number of possibilities of the given situation: Devin pressed 3 different numerical…

A: Combinations: The number of combinations of r items selected from n items is, nr=n!n-r!r! There…

Q: One Sunday, 681 people visited the zoo. Of these, 291 were men, 135 were women, and the rest were…

A: Total people visited the zoo = 681 Total men = 291 Total women = 135

Q: Ms. Karen has 7 children in her preschool class. She would like to give each student an equal number…

A: Solution is given below:

Q: Find the number of ways to arrange the following 9 books on a shelf: 2 identical Math books, 4…

A: Given, total no of books = 9 Math books = 2 (Identical) Physics books = 4 (Different) Chemistry…