A man is 21 years older than his son. Five years ago he was 4 times as old as his son. What are their ages now?

Q: Mike is 4 years older than Ron. In two years, the sum of their ages will be 84.How old are they now?

A: Let x and x + 4 be the present age of Ron and Mike respectively.

Q: Kate is three times as old as her son. If kate is 30 years older than her son, what are their ages?

A:

Q: The product of the ages, in years, of three teenagers is 4590. None of the teens are of the same…

A: The age of a teenagers are from 13 to 19 years. The product of the age is 4590 Since 4590 is…

Q: In the year 2015 Smallsville had a population of 37,000.  Over the next 5 years, the town grew by…

A:

Q: A certain antique car’s value increases by 6% each year. if the current value of the car is $42,600,…

A:

Q: A marble bust is 25 years old, and a terra-cotta bust is 85 years old. In howmany years will the…

A: given A marble bust is 25 years old, and a terra-cotta bust is 85 years old

Q: When a number in increased by 20%, the result is the same when it is decreased by 10% plus 12. What…

A: Given that, a number is increased by 20% the result is the same when it is decreased by 10% plus 12.…

Q: Daniel is 4 times as old as Charlie. He is also 27 years older than Charlie. How old is Daniel?…

A: Solution: Let  the age of charlie =x  Acc to question Daniel age = 4(Charlie age)=4x.…

Q: Stephen is 60 years younger than Taylor. 5 years ago, Taylor's age was 4 times Stephen's age. How…

A: Let Stephen age be x.          Taylor age = x+ 60

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: Matt is 58 years younger than Carrie. 8 years ago, Carrie's age was 3 times Matt's age. How old is…

A: Let Matt is x years old now. and Carrie is y years old now

Q: A store hada very popular toy on sale. On the ninth day of sale, the number of toys sold was 8960.…

A: Solution:Givenlet xn be nth day of saleAs per the question x9=8960and xn= 2xn-1

Q: A scientist observed that a certain species of bacteria grew by 18% each hour. How many bacteria…

A: Given that a certain species grew by 18% each hour. To find the number of bacteria present after 5…

Q: Kim is 6 years more than twice Timothy's age. 2 years ago, Kim was three times as old as Timothy.…

A: Given: Kim is 6 years more than twice Timothy's age. 2 years ago, Kim was three times as old as…

Q: John is 3 years older than Mary. Five years ago he was four times as old as Mary was then. How old…

A: John is 3 years older than Mary. Five years ago he was four times as old as Mary was then. To find…

Q: Cheen is now fives times as old as Monokuma was 5 years ago. If the sum of Monokuma’s and Cheen’s…

A: GIVEN: Cheen is 5 times old as Monokuma was 5 years ago.               sum of Monokuma’s and Cheen’s…

Q: Eight years ago, Zian was 4 times as old as Xander. How old is Xander now if his age is one-half of…

A: Assume that Xander was x years old 4 years ago. So Zian was 4x years old.

Q: Jim is 3 times as old as his cousin and the difference in their ages is 18. How old is Jim?

A:

Q: Lita is 60 years old and her daughter is 40. In how many years will the mother be three times as old…

A:

Q: Ray is 19years older than his sister Danielle. In 10 years, he will be twice as old as Danielle. How…

A:

Q: A scientist observed that a certain species of bacteria grew by 11% each hour. How many bacteria…

A: Answer and explanation is given below...

Q: Divide $80 among three people so that the second will have twice as much as the first, and the third…

A: Let A, B and C are the three peoples.It is given that if A has x dollars then B has 2x dollars and…

Q: At the time of my birth, the sum of years of my parents was 50. Today, the sum of my years and the…

A: Let 'x' be your current age and 'y' and 'z' be current age of your parents.  So, x+y+z=100 This…

Q: Gregory was p years of age 4 years ago. In terms of p, How old will he be in 4 years from now?

A:

Q: Kit is twice as old as his friend Sam. Sam is 5 years older than Cara. In 5 years, Kit will  be…

A: Form the equation using a variable and solve it.

Q: When a number is decreased by 20% of itself, the result is 48. What is the number? The number is

A: Let the number is 'x'. A number is decreases by 20% of itself; it means that: y=1-20100xy=0.8x

Q: Angel is 28 years old and her sister is 10. In how many years Angel will be two times as old as her…

A: Given that: Angel is 28 years old and her sister is 10 years old.

Q: John is four times as old as Martha. Five years ago the sum of their ages was 50. How old are they…

A: Let John represent x years and Martha represent y years. We know that John is four times as old as…

Q: Kim is 10 years older than Laura. Laura is twice as old as Melissa. If Melissa will be 10 years old…

A:

Q: Arturo is 54 years younger than Jennifer. 6 years ago, Jennifer's age was 3 times Arturo's age. How…

A: The objective is to find Arturo's age .

Q: A $450 dishwasher depreciates by $75 per year.  After how many years is the dishwasher worth 0$?

A:

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: a number decreased by 12 is equal to the number times 7

A: NOTE: Refresh your page if you can't see any equations. . let the number is x a number decreased by…

Q: Ayaka is 12 years older than Joshua. Five years ago, the sum of their ages was 28. How old are they…

A: Algebra is a branch of mathematics. In algebra mathematical symbols are used to calculate the…

Q: Brody was given a large box of 48 chocolates for his birthday. If he eats exactly 3 chocolates each…

A:

Q: when you were a freshman, there were 350 students in your class. in recent years, only 4 out of 7…

A: Total number of student in class: 350

Q: When 20 is subtracted from five times a number, the result is the same as when 18 is added to three…

A: Given,            When 20 is subtracted from five times a number, the result is the same as…

Q: A kerosene lamp is 95 years old, and an electric lamp is 55 years old. Howmany years ago was the…

A: Let x years ago the kerosene lamp twice the age of the electric lamp   x years ago the kerosene lamp…

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: Tanya is 12 years older than Leah . Three years ago , Tanya was five times as old as Leah . What is…

A: Tanya age =18 years  Leah age = 6 years  For detail...go through the solution

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: Mary is 24 years old. Mary was twice as old as Ann was when Mary was as old as Ann is now. How old…

A: Note: There is mistake in statement as, statement talks about past in both part. which will not…

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

A:

Q: Kaden is 1/4 as old as Tom. In 7 years, the sum of their age will be 54. How old is Tom now?

A: Given that Kaden is 1/4 as old as Tom and  In 7 years, the sum of their age will be 54. We need to…

Q: Olie is three times as old as Bong. Four years ago, he was four times as old as Bong was at that…

A:

Q: The North cheerleading team saw a 15% increase in applicants after its first year. If they had 44…

A:

Q: The sum of the ages of Kristen and Ben is 32. Four years ago Kristen wastwice as old as Ben. How old…

A:

Q: Tom is three years older than his brother Tim. The sum of their ages is 79 How old will Tim be in…

A: Let present age of Tim = x Present age of Tom = x+3

Q: The father is 4 times as old as his daughter 5 years ago. In 6 years, he will be three times as old…

A: present age of daughter be x present age of father be y   5 years ago   daughhter's age :  x-5…

Q: Fahad is 4year old than huma and ali is 2 years younger than huma. If the sum of there ages is 47…

A: Let, age of Huma= x years So the age of Farhad= (x+4) years The age of Ali is =(x-2) years

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.