Five years hence, father's age will be three times the age of his son Five years ago,father was seven times as old as his son. Find their present ages.

Q: Valir 1 is twice as old as Valir 2, 8 years from now, the sum of their ages will be 42. How old are…

A: Valir 1 is twice as old as Valir 2, 8 years from now, the sum of their ages will be 42. How old are…

Q: A 40­inch board is to be cut into three pieces so that thesecond piece is twice as long as the first…

A: Let the length of first piece is x inches. The length of second piece is twice as long as the first…

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

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

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Q: If you add the ages of Joshua and Maurade together the total number of years is 28. If Joshua is two…

A: The objective is to determine the ages of Joshua and Maurade. Let the ages of Joshua be x. Given,…

Q: If the number of bacteria in a colony doubles every 405 minutes and there is currently a population…

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…

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Q: In 14 years, a child's age will be 7 years less than four times her current age. Find the child's…

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Q: The sum of ages of a father and his son is 45 years. Five years ago, the product of their ages (in…

A: Solve for the present age

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: There is a population of 65 bacteria in a colony. If the number of bacteria doubles every 484…

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Q: Deanna can finish a certain job in 10 days. Jessica can finish the same job in 14 days. If Deanna…

A:

Q: Rojana is 8 years older than AJ, and the sum of their ages is less than 24. Find their possible…

A: We will find the possible age of Rojana and AJ in the following step.

Q: Richard and Teo have a combined age of 31. Richards if 4 years older than twice Teo's age.  How old…

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Q: If twice the sons age in years is added to the father's age,the sum is 70.but the twice the father's…

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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: A silver coin is 28 years older than a bronze coin. In 6 years, the silver coinwill be twice as old…

A: Let the present age of the bronze coin is = x years  So the age of the silver coin is = (x+28) years…

Q: Jack is twice as old as Lacy. In three years the sum of their ages will be 54.How old are they now?

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Q: An car depreciates (decreases in value) by 20% of its value from the previous year. If the car was…

A: Price of the car is decreases by 20% for every year. Therefore r=20% Price of car is $40,000…

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

A: Given,  A person will devote 34 years to sleeping and watching TV.  The number of years sleeping…

Q: If a parade 2mi long is proceeding at 3 mph, how long will it take a runner, jogging at 6 mph, to…

A:

Q: A collectible baseball card is predicted to increase in value by 6.5% each year. If the baseball…

A: Let us denote x=time , y= value of the card Given that the initial value= $85 and baseball card is…

Q: A boy is 10 years older than his brother. In 4 years he will be twice as old as his brother. Find…

A: Let presently boy= x years So, brother= x-10 years After 4 years, {x+4}=2{x-10+4} So, x= 16 years

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…

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Q: The product of john age (in years) for 5 years age with his age (in years) 9 years later is 15 .Find…

A: The product of john age (in years) for 5 years age with his age (in years) 9 years later is 15

Q: In four years time a mother will be three times as old as her son. Four years ago she was five times…

A: Let M be the present age of the mother and S be the present age of the son.

Q: the sum of the ages of Juman ans Nina is 112 years ago. 6 years ago, Juwan age was 4 time Nina's…

A: Using given information we will solve the question.

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…

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Q: Five years ago, Al is 6 years younger than Je who is at that time 2 years more than twice as old as…

A: Let the age of Al before 5 years be a   Let the age before 5 years of Je be,  bThen, b=a+6or,…

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

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Q: The present time is 9 AM .What time will be 3600 seconds from now?

A: Given that the present time is 9 AM . We want to find the time after 3600 seconds.

Q: Jess is twice as old as Dan , and Dan is four times as old as Jun . Express each of their ages in…

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Q: A mother is now three times as old as her daughter. In 4 years, the mother will be four times as old…

A: Let Mother's age now is M years Daughter's age is D years Given mother is now three times as old as…

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

A: Nancy is 18 year old, now. Th detailed solution is as follows below:

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 natural number when increased by 12 , becomes equal to 160 times its reciprocal. Find the number

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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: Four year ago, Gener is three times the age of his son Dan, In 10 years he will be twice his son's…

A:

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: The ages of the two persons differ by 20 years. If 5 year ago, the older one be 5 times as old as…

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.