Eight years from now, Nancy will be twice her age 5 years ago. How old is Nancy now?

Q: A  natural number when increased by 12 , equals 160 times its reciprocal .FInd the number

A:

Q: How much more money would be in his account after 5 years if he saved $300 than if he saved $250?

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Q: Assume an average human heart beats 65 times per minute and an average human lifetime is 80 years.…

A: Known Facts:

Q: There are approximately 500 wolves in Algonquin Provincial Park. Under ideal conditions, this…

A: Using exponential growth function, we will come to required result

Q: Amina is currently twice as old as her younger brother, Saar. In 4 years, Amina will be 50% older…

A:

Q: Joan is 32 years old. Joan is twice as old as Kim was when Joan was as old as Kim is now. How Old is…

A:

Q: Five years hence, father's age will be three times the age of his son Five years ago,father was…

A: let  father's age= x son's age = y

Q: Suppose that a colony of bacteria starts with 1 bacterium and doubles in number every half hour. How…

A: To determine the number bacteria at the end of 24 hours.

Q: On average, a person devotes 34 years to sleeping and watching tv. The number of years sleeping will…

A:

Q: Mr. De Guzman is four times as old as his son. In 16 years he will be only twice as old. What are…

A:

Q: According to statistics, a person will devote 34 years to sleeping and watching TV. The number of…

A:

Q: If the number of bacteria in a colony doubles every 157 minutes and there is currently a population…

A: This problem can be solved without deriving any general formula

Q: A mother is 6 times as old as his daughter. In 3 years she will be 4 times as old. How old is the…

A: given A mother is 6 times as old as his daughter. In 3 years, she will be 4 times as old

Q: When Athena was 8 years old, she was twice as old as Mario. At present, Athena is 16 years old. What…

A: Find the present age of the Mario

Q: In 450 years, a sculpture will be twice as old as it was 250 years ago. What is the present age of…

A:

Q: Karen is twice as old as Lori. Three years from now, the sum of their ages will be 42. How old is…

A: It is given that the Karen is twice as the old as Lori.Let consider the age of the Lori be x and the…

Q: The crime rate of a certain city is increasing by exactly 6% each year. If there were 400 crimes in…

A:

Q: The number of cells in a tumor doubles every 4.5 months. If the tumor begins with a single​ cell,…

A:

Q: Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam. How old are…

A: Given: Adam is 20 years younger than Brian. In two years Brian will be twice as old as Adam. How old…

Q: The sum of the ages of a wood plaque and a bronze plaque is 20 years. Fouryears ago, the bronze…

A: Given: The sum of the ages of a wood plaque and a bronze plaque is 20 years. Fouryears ago, the…

Q: Ian is 2 years older than Carissa. In 7 years the sum of their ages will be 58. How old is Ian now?

A:

Q: Ana is five years older than Beth. In five years, the product of their ages is 1.5 times the product…

A: Given problem:- Ana is five years older than Beth. In five years, the product of their ages is 1.5…

Q: A string is cut into two pieces such that one piece is four times as long as the other. How long is…

A: In this question we have to find how long the shorter piece.

Q: If sandago has a present population of 70000 and the population increase by 3% each year. What will…

A:

Q: Olivia puts 100 dollars into a fund and continuously does so at the end of each month. Although, the…

A: It will form an arithmetic progression (A.P.) with first term a1=100 and common difference is d=5.…

Q: A colony of 7,800 bacteria doubles in size every 429 minutes. What will the population be 858…

A:

Q: The present age of Jacob’s father is three times that of Jacob. After 5 years, sum of their ages…

A: Given The present age of Jacob’s father is three times that of Jacob. After 5 years, sum of their…

Q: The sum of the ages of Elli and Dan is 56. Four years ago Elli was 3 times asold as Dan. How old are…

A: Let x and y be the ages of Dan and Elli respectively. According to given data, we have

Q: Agnes is 6 years older than her sister. She will be twice as old as her sister in 4 years. How old…

A: GIVEN : Agnes is 6 years older than her sister. In 4 years, Agnes will be twice as old as her…

Q: What is Farah's age twenty years from now if she was x years old 10 years ago?

A: Given thatFarah's age is  x years before 10 years agoTo find Farah's age after 20 years.

Q: 6. Martin is currently four times as old as his brother Luther. After 10 years, he will be twice the…

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Q: Sally is 3 times as old as John. 8 years from now, Sally will be twice as old as John. How old is…

A:

Q: Kathy is twice as old as Leah. Ten years from now, the sum of their ages will be 65. How old is…

A: Let the present age of Leah is x years. since Kathy is twice as old as Leah, so the present age of…

Q: the population of a pod of southern right whales has doubled in size recently over a 9-year period.…

A:

Q: Janes mother is 3 times as old as Jane, and in 16 years from now she will be twice as old as Jane is…

A:

Q: A father is 4 times as old as his son. In 20 years the father will be twice as oldas his son. Find…

A:

Q: Mario is two years older than Luigi. Twenty years ago, Mario was ten years more than half Luigi's…

A: Let's assume Luigi's age as 'x' yearSince, Mario is two years older than Luigiso, Mario's age =x+2

Q: A new car worth $25,000 is depreciating in value by $5,000 per year. After how many years will the…

A:

Q: Just as a light-year is the distance that light can travel in 1 year, a light-week is the distance…

A:

Q: Over the past 10 years (actually, 2007 to 2017), it is estimated that the population of China has…

A: Given:Over the past 10 years (actually, 2007 to 2017), it is estimated that the population of China…

Q: Diane is 23 years older than her daughter Amy. In 6 years Diane will be twice as old as Amy. How old…

A:

Q: A father is three times as old as his son, and his daughter is 3 years younger than the son. If the…

A: given A father is three times as old as his son, and his daughter is 3 years younger than the son.…

Q: Renren is 4 times as old as Mark. six years from now, he will be twice as old as Mark. How old are…

A:

Q: A father is 3 times as old as his son after twelve years his age will be twice as that of his son…

A: Let the son present age is x years, then the age of father is 3x years. from the given…

Q: A man is 6 years older than 3 times his son's age. Five years from now the sum of their ages will be…

A: Let x be the son's age, then the age of man is 3x + 6, because  man is 6 years older than 3 times…

Q: Tim is 5 years older than JoAnn. Six years from now the sum of their ages will be 79. How old are…

A: Let the age of Joann be x years Age of Tim be (x+5) years After 6 years, Age of joann will be (x +6)…

Q: If the number of bacteria in a colony doubles every 4 minutes and there is currently a population of…

A: Explanation and solution is given below....

Q: Ten years from now, Obi Wan's age will be 4/7 of Draxthor's age then. Ten years ago, Draxthor was…

A:

Q: Ten years from now the age of a mother will be twice the age of her daughter. Six years ago, the age…

A:

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.