A culture of bacteria triples after 6 hours. (a) What proportion of the original number of bacteria  Q0 will be present after 12 hours?   (b) What proportion of the original number of bacteria  Q0 will be present after 24 hours?

Q: In a fruit cocktail, for ever 30 ml of orange juice you need 45 nl of apple juice and 25 ml of…

A: We have: 30 ml of orange juice 45 ml of apple juice 25 ml of coconut milk So, the total quantity of…

Q: A mother wants to invest ​$9,000.00for her​ son's future education. She invests a portion of the…

A: Here we will find the amount invested in CD account,

Q: If I decided to decrease the percentage of 80% alcohol to 65% by taking out an amount and replacing…

A: 1 liter amount has 80% alcohol. How much amount was replace by pure water to make 1 liter amount of…

Q: ABC stock cost you $50 per share and XYZ stock cost you $60 per share. ABC had a year-to-date loss…

A: In this question we will use basic of algebra. First we will assume number of share as x and y for…

Q: A telephone attendant receives 110 calls during the busy hour. Each call takes, on average, 2.1…

A: Given: A telephone attendant receives 110 calls during the busy hour. Each call takes, on average,…

Q: If Juan is taller than Pedro by 10%, then Pedro is taller than Maria by 10%, then Juan is taller…

A: If Juan is taller than Pedro by 10%, then Pedro is taller than Maria by 10%, then Juan is taller…

Q: population of a city is 97​,000. If the population is declining continuously by 3.6​% per​ year,…

A: In this question we will use basic calculus i.e formation of exponential function.  First we will…

Q: Suppose you spend $12 a week on snacks. Nearly one-quarter of a million children worldwide die each…

A: We need to figure out how many children can be immunize in a year with half of the snack money spent…

Q: In Edgar’s state, unemployment compensation is calculated by finding the total of the quarterly…

A:

Q: 34. In a family, each boy has as many sisters as brothers, but each sister has only half as many…

A: Given in a family, each boy had as many sisters as brothers, but each sister has only half as many…

Q: In a certain year, a magnitude 7.7 earthquake struck California. In another year, a magnitude 5.7…

A: According to definition;                                       M = log(I/S)   Now, for comparison of…

Q: A cake box contained 2 kinds of cake: strawberry and chocolate. If 2 strawberry cakes were to be…

A: We have to find the fraction of strawberry cakes.

Q: A bowl holds 4 cups of rice. If I use a measuring cup that holds 0.125 of a cup, how many times will…

A:

Q: 1. A sink can be filled by a pipe in 5 minutes, but it takes 7 minutes to drain a full sink. If both…

A: Topic - pipe and drain problem Note : as per bartleby Guidelines ,we are supposed to solve only…

Q: if the full capacity of a tank is 20 liters, and the tank is only filled with 16 liters, then what…

A: Capacity is the measure of the volume that can be occupied in a container.

Q: In Lixue’s garden, the green pepper plants grew 5 inches in 3434 month. At this rate, how many feet…

A:

Q: How many different bowls of ice cream can you make with 8 flavours and 5 scoops such that you have…

A: Given: Number of flavors = 8 Number of scoops = 5

Q: A farmer gets 24.5 L of milk from each of his cows per day. He milks all five cows and pours the…

A:

Q: If Art and Rita can do a job in 8 hours (working together at their respective constant rates), and…

A: Given,    Art and Rita can do the job in 8 hours .    Art can do the job alone in 12 hours .  Let…

Q: At a hotdog stand, they serve regular and footling hot dogs at a ratio of 5 to 3. Based on this…

A: Given that The ratio of regular and footling hot dogs served is 5:3. Total number of hot dogs served…

Q: A retired woman has $60,000 to invest. She has chosen one relatively safe investment fund that has…

A: Suppose, the amount of investment at 9% rate is  xx dollar. As the total amount of investment is…

Q: 1. In an Easter Egg Hunt, there are five eggs under a tree. There are four times as many chocolate…

A: Total number of eggs under the tree is 5. The number of chocolate egg is four times the marshmallow…

Q: 1 Pablo used of a cup of butter in making a batch of brownies. Then he ate of the batch. What…

A: For 1 batch 3/4 of a cup of butter  is used. 1/6th of that batch is ate by Pablo.

Q: A small school has 100 students who occupy three classrooms: A, B, and C. After the first period of…

A: Let x be the number of students in room A, y be the number of students in room B, and z be the…

Q: A sari sari store owner was given a discount of P7, 375 on all items he purchased in a store. If he…

A: Total discount = P 7375 10% discount on P 27720 =P27720×10100=P 2772

Q: A school needs to buy new notebook and desktop computers for its computer lab. The computers cost…

A:

Q: A gardener is transplanting flowers into a flowerbed. she has been working for an hour and has…

A:

Q: The olive trees in an orchard produce 3,000 pounds of olives a year. It takes 20 pounds of olives to…

A: According to the given information, 20 pounds of olive is sufficient to make the 3 litres of olive…

Q: An apple farm yields an average of 46 bushels of apples per tree when 24 trees are planted on an…

A: The farm yields 46 bushels of apple per tree when 24 trees planted per acre 1 bushel yield is…

Q: The number of people applying for free financial aid has gone up in the past decade by 6.74%. If the…

A: Given Data: Change in percentage=0.0674   Number of people that used to apply=9720000

Q: 2. What is the AP weight of 2 # 6 oz of peeled turnips if their yield percentage is 88%? 3. How many…

A: Multiple questions-"As per our guidelines we are suppose to answer only one question.Kindly re-post…

Q: culture of bacteria triples by the end of each hour. If there were initially 40 bacteria in a…

A:

Q: 4. Jordan has a sister who is three years older than he is, and a brother who is two years younger…

A: let the age of Jordan be x years His sister's age is x+3 years and brother's age is x-2 years

Q: At the start of the school year,the ratio of boys to girls in drama club is 5 to 3.After Winter…

A: At starting in drama club let the number of boys be x and number of girls is y  At start ration of…

Q: Eight cubic yards of soil that is 50% sand had to be mixed with some soil that is about 10% sand to…

A: Given:8 cubic yards of soil that is 50% sand had to be mixed with some soil that is about 10% sand…

Q: A cake box contained 2 kinds of cake: strawberry and chocolate. If 2 strawbery cakes were to be…

A: Given: After giving 2 strawberry cake to a kid the ratio of strawberry to the chocolate cake in the…

Q: A 12% tin alloy is to be melted with an 18% tin alloy.   How many kilograms of each tin alloy must…

A: Alloy 1 =  12 % Alloy 2  = 18% Let the quanity of alloy 1 =x  Then , quanity of allo 2 = 15 -x

Q: 1. A collection of coins has a value of 64 cents. There are two more nickels than dimes and three…

A:

Q: One hour after a bacteria colony starts growing, a scientist determines that there are 9000 bacteria…

A: find the explanation below

Q: 1. A goldsmith has two alloys of gold, the first being 70% pure and the second being 60% pure. How…

A: According to the question, Let x be the no. of ounces of 70% gold used; y of 60% used, then…

Q: 2. A teaching assistant at a university needs 28% acid solution for her class's lab experiment.…

A:

Q: Need help on 13

A:

Q: A swimmer pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only…

A: Given: A swimmer pool had 2.5 million liters of water in it. after the evaporation pool only had 2…

Q: Certain bacteria cells are being observed in an experiment. The population triples in 1 hour. If at…

A: Given: At the end of 3 hours, the population is 27000.

Q: 2. An investor bought 20 shares of stock for a total cost of $1200 and then sold all the shares for…

A: Given that the investor bought 20 shares of stock for a total cost of $1200 and then sold all the…

Q: 12. Benny received 4 pennies on the first day of the month, and each day after that, he received…

A: Given: Money received on Day 1 = 1 penny Money is being quadrupled every day. So, Money received on…

Q: 1 mL of a bacteriophage suspension is mixed with 20 mL of a bacterial culture and 50% of the phages…

A: Answer:

Q: There is 800L of water in a tank. At the top, a tube pours 25L per minute into the tank, and at the…

A: Initial total water in tank = 800 L  water pours by tube from top = 25 L per minute  water leaving…

Q: In a market, 585 of the fruits are apples. 11 of the remainder are bananas and the rest are oranges.…

A: In a market, 585 of the fruits are apples. 3/11 of the remainder are bananas and the rest are…

Q: 10) Salt and pepper are mixed in a ratio of 3:2 in a recipe. In another recipe, 8 parts of pepper…

A: topic - ratio and proportion

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.