5. How many rectangles are on am x n-size "chessboard"? For example, there are nine rectangles on a 2 x 2-size board: The whole board, 4 smaller squares and 4 ways in which 2 squares make a rectangle. Check your answer by calculating the number of rectangles on a 3 x 3-size chess board.

Q: A bag contains 3 lemon, 2 cherry, and 6 grape candies. A handful of 4 candies is grabbed from the…

A: At most 1 grape candy means 0 or 1 grape candy. There are 6 grape candies and (3+2)=5 non-grape…

Q: One bag contains 6 green and 2 white marbles. A second bag contains 7 blue and 4 silver marbles. One…

A: From given  one There is 6 green and 2 white second bag contains 7 blue and 4 silver marbles.

Q: robert may select a desktop from a geoup of seven, and laptop from a group of 5. how many stats ways…

A: given data, robert may select a desktop from a geoup of seven, and laptop from a group of 5.we have…

Q: Find the number of ways to divide 20 people into Group A (8 people), Group B (7 people) and Group C…

A:

Q: how do you know the amount of columns to add

A: The number of columns depends on the formula you are using for the final result.

Q: Find the number of bags of 103 pieces of vegetables that can be made out of carrots, tomatoes,…

A: Consider the given Number of carrots in the bag=even Number of tomatoes  in the bag=multiple of 5…

Q: Naia has 4 pairs of shoes (white, black, gray, maroon) and 3 bags (red, blue, green). In how many…

A: Given Naia has 4 pairs of shoes and 3 bags we have to find number of shoe-bag combination.

Q: This bag contains one fewer Lima bean than Red beans. There are six more Black beans than Lima…

A: Dear student, You posted the problem, but I think you forgot to mention the question. It's easily…

Q: there are 4x+5 girls in classroom. If each of them is asked to bring 5x2+6x-3 pices of plastic cups,…

A: To find the total number of plastic cups

Q: A designer is updating a bedroom in a house and wants to put up some high quality wall paper on all…

A: The four walls of the room will be like four rectangles, There will be two rectangles of dimensions…

Q: What is 4x6x7 equals?

A: Given:- 4x6x7 To find: value of 4x6x7

Q: John has eight blue marbles and 16 orange marbles. He also has blue and orange bags. He wants to put…

A: Given that there are 8 blue marbles and 16 orange marbles. The question mentioned that each bag will…

Q: is this a 2x2, 2x3, 2x4, or 3x4 design

A: Concept:In an experimental design,we define dimension based on number of treatment ND number of…

Q: How many such squares contain and equal number of red and black squares?

A:

Q: Suppose Allan is going to build a playlist that contains 12 songs. In how many ways can Allan…

A:

Q: Find the number of ways to break a group of 12 people into 3 classrooms, no empty classrooms.

A: Solution

Q: A donut store has 10 different types of donuts. You can only buy a bag of 3 of them, where each…

A: A donut store has 10 different types of donuts. You can only buy a bag of 3 of them, where each…

Q: A dining hall had a total of 25 tables, some long rectangular tables and some round ones.  Long…

A: x = 20 y = 5

Q: 12. Divide: 2x5-3x4-9x²-x-3 x²-3

A:

Q: How many ways can the 9 drummers of a marching band be split into 2 rows of 6 and 3 if order within…

A: Given, There are 9 drummers We have to split into 2 rows of 6 and 3 So,

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: There are 15 people expected for a dinner. If 3 ounces of corn serve 1 person and 1 can of corn is 9…

A: We can solve this

Q: An aquarium has 4 plants for every 3 fish. There are 36 plants in the aquarium. How many fish are…

A:

Q: The area of a rugby field at UWC is 10080 m2. You want to determine the number of dandelion plants…

A: Here We will Use Simple basic math's logic for this case

Q: soccer team is playing a game in a stadium. The team fills a total of 592 seats on one side of the…

A: Given query is to find the number of rows used.

Q: A large auditorium has 90 rows of seats. The first row has 50 seats, and each succeeding row has 5…

A:

Q: An ice cream store stocks 30 different flavors and offers rainbow banana boat split that contains 3…

A: Given, An ice cream store stocks 30 different flavors  It offers rainbow banana boat split that…