and blue ceramic tiles are laid according to a pattern such that for every 19 red tiles used, 6 blue tiles are used. If a total of 400 tiles are used, how many of them are blue?

Q: How many choices are there for a person to check out 4 CDs from a library that has 25 CDs of his…

A: Given : n = 25 x = 4

Q: island has 12 fur seal rookies(breeding places). To estimate the fur seal pup population in Rookery…

A:

Q: 1)Tom has 2021 balloons to be evenly distributed among 21 students. If every student receives the…

A: Tom has 2021 balloons .We have distributed in 21 students every students receive balloons…

Q: How many ways can first and second place be awarded to 12 racers?

A:

Q: .On a particularly boring transatlantic flight, one of the passengers amused himself by counting the…

A: let B: black haired Let W :  whole row n(B ∪ W) = 37n(B) =33n(W) = 6

Q: The men hired by a certain city police department must be at least 69 inches tall. If the heights of…

A: Given μ=70 inches and σ=2 inches We need to find, Z=X-μσ=69-702=-12=-0.5 Now to find the required…

Q: A theater has 32 rows of seats. If there are 26 seats in the 1st row, 30 in the 2nd, 34 in the 3rd,…

A:

Q: If order of items is important when selecting some of n unique items, the number of arrangements are…

A: By order being important, we mean that (a, b) and (b, a) are not equal. For example, if we are…

Q: In the Olympics, there are 8 swimmers in the final race. How many ways can the gold, silver, and…

A: Given there are 8 swimmers, and 3 awards(gold,silver,bronze) Therefore number of ways gold, silver,…

Q: A certain long serving politician is careful to make 3 true statements for every lie he tells,…

A: For every false statement, the politician makes 313=103 true statements.   Thus for x number of…

Q: A landscaper wants to plant four oak trees, eight maple trees, and six poplar trees along the border…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: In a class with 25 student there are 6 student very talentet in the subject of art. What percentage…

A:

Q: In a class of 50 students, 10 have failed and their average of marks is 2 5. The total narks secured…

A: Given: total 50 students 10 failed students average of failed students is 2.5 total marks 281

Q: How many ways can you distribute n (indistinguishable) marbles to k different adults so that each…

A: A simple way to do this is using the stars and bars method. First, we give 3 marbles to all k…

Q: In how many ways can you distribute n pennies to k children if each child is supposed to get at…

A:

Q: A manufacturer of electric bulbs sends out 500 lots each consisting of 100 bulbs. If 5% bulbs are…

A: It is given that a manufacturer of electric bulbs sends out 500 lots each consisting of 100 bulbs.…

Q: A researcher wished to estimate the difference between the proportion of users of two shampoos who…

A: Based on the provided information, the known values are: p1=78400=0.195p2=92500=0.184n1=400n2=500 In…

Q: In a very hotly fought battle 70% at least of the combatants lost an eye, 75% at least an ear; 80%…

A:

Q: In a competition, junior chefs make a gourmet soup by selecting 10 different ingredients. How many…

A: GivenNo.of different ingredients(n)=10No.of ingredients must include(r)=4

Q: a) in how many ways can 6 numbered books be distributed over 4 identical shelves if shelves can be…

A: To distribute n things in k places, the formula is n+k-1k-1

Q: students have been surveyed to determine if they prefer to work in groups or individually for…

A:

Q: In a class of 210 students, 60 students drink coffee only, 100 drink tea only and 180 drink either…

A:

Q: In a survey at a local university, 25% of students say that they get less than the recommended eight…

A: Given  Total students = 3900 Percentage of Students get less than the recommended eight hours of…

Q: At a competition of 6 teams, the order of the first 3 is recorded. How many different outcomes does…

A: Given that, At a competition of 6 teams, the order of the first 3 is recorded. Required: To find how…

Q: Only 30% of teams beat The Great Escape Challenge. If 15 teams beat the challenge, how many teams…

A: It is given that 15 teams beat the challenge, which is the 30% of the teams that played The Great…

Q: Berkeley College students have been surveyed to determine if they prefer to work in groups or…

A: Berkeley College students have been surveyed to determine if they prefer to work in groups or…

Q: how many students were surveyed in total?

A:

Q: Suppose that 35% of people own dogs. If you pick two people at random; what is the percent that they…

A: Solution: From the given information, the probability of people own dog is 0.35. Here, two people…

Q: In a fertility clinic, 40% of the women patients did not become pregnant, 30% had a singleton birth,…

A:

Q: A seaside resort along the Pacific Ocean is equipped with an electronic shark detection system that…

A: Since multiple questions are given first question is answered step by step. Kindly repost for more…

Q: d. At Baskin Robbins customers may choose from 32 flavors of ice cream, 7 toppings, and 4 different…

A: Authoring guidelines:…

Q: Suppose a​ 10-in. circular pizza costs​ $4.00. To find the​ price, x, of a​ 14-in. circular​ pizza,…

A:

Q: Suppose 20% of cars are sportscars and that 30% of sportscars are red, and that 25% of all cars are…

A:

Q: Before a trial, a jury had to be selected from a group of 12 males and 13 females. a. In how many…

A:

Q: There are 16 flowers in a vase. Seven of the flowers are yellow, whereas 5 are red. What is the…

A: We have to check

Q: I need help with this problem

A: To determine the number of students in the class.

Q: Last year , 1,345 bicyclists showed up to the bicycle race . This year , only 690 bicyclists showed…

A: Solution:  Given information:  Last year the number of bicyclists that showd up was 1345. This year…

Q: Red and blue ceramic tiles are laid according to a pattern such that for every 18 red tiles used, 7…

A: Given that for every 18 red tiles used, 7 blue tiles are used.  So in total (18+7)=25 tiles 7 are…

Q: From 8 candidates if 3 are selected for Open Scholarships. How many possible options are available…

A:

Q: How many ways can 7 people fall in line if 2 persons doesn’t want to be seated next to each other?

A:

Q: 5. The school has case of 144 donut holes and a case of 24 milks. If these are divided evenly among…

A: 5. Given  The school has case of 144 donut holes and a case of 24 milks.

Q: In a blended party where 76 attendees are onsite and 35 attendees are online via zoom, a grand prize…

A:

Q: black hair or had a whole row to themselves (or both). Of this total, 25 had black hair and 5 were…

A:

Q: (a) If you toss the coin 10 times, it will come up heads 5 times. (b) If you toss the coin a very…

A: Here use basic concept of expectation and MOE

Q: If 96 of the 136 participant in the club activities are nonresidents what is the ratio of residence…

A: No. of total participant in club activities are: 136 No. of nonresidents participant in club…

Q: one group (a) contains 510 people. one third of the people in group a will be selected to win $50…

A:

Q: In a class, 96% students have at least one smartphone, 98% have a calculator, and 95% have a…

A:

Q: In how many ways can 6 marbles be distributed among 3 boxes?

A: According to the provided information, we need to distribute 6 marbles among 3 boxes.

Q: Out of 500 people in a room, 200 of them are wearing red shirts. Of the people wearing red shirts,…

A: Total number of people in the room n= 500 People wearinng red shirt, r=200

Q: In a very hotly fought battle, 70% at least of combatants lost an eye. 75% at least an ear. 80% at…

A: