Math

posted by Chris

Could someone please help me solve this problem, the age numbers that I am working with are 10yrs old 55yrs old and 75yrs. old. I need to know at my age of 55, in years, how old was the older person of 75 when I was born?

Could you please write an equation that models how old in years each of us will be, when our ages add up to 150 years old. For example, if x = your age and the eldest person was a year older than you, you would write their age as x + 1. Then the equation would be: x + (x+1) = 150.

Explain the reasoning which helped you develop your equation.

In years, how old were you when the youngest person was born?

At some point during the lives of you and the youngest person, your age will be three times his/her age at that moment. Write an equation which models how old in years each of you will be when you are three times as old as the younger person.

Explain the reasoning which helped you develop your equation.

Solve the equation for your ages when you are three times as old as the youngest person. Are your answers reasonable?

1. helper

You question is not clear.

Are all these age problems based on the 10 year old, 55 year old and 75 year old or are these separate problems?

Are these ages three different people?

For example, "at my age of 55, in years, how old was the older person of 75 when I was born?"

Based on this wording, my answer to you would be,
75 - 55 = 20
The older person was 20 when you were born 55 years ago.

How old in years each of us will be, when our ages add up to 150 years old?
x = 10yo
x + 45 = 55yo
x + 65 = 75yo
x + x + 45 + x + 65 = 150
3x + 110 = 150
3x = 40
x = 13.33

x = 13.33 = age of 10yo
x + 45 = 58.33 = age of 45yo
x + 65 = 78.33 = age of 75yo

In years, how old were you when the youngest person was born?
55 - 10 = 45

Is this what you are looking for?

2. David

Refer back to Week One Discussion and use the names and ages of yourself and the other two people you selected. Make sure one is older than you and one is younger than you.
In years, how old was the older person when you were born?
Write an equation that models how old in years each of you will be, when your ages add up to 150 years old. For example, if x = your age and the eldest person was a year older than you, you would write their age as x + 1. Then the equation would be: x + (x+1) = 150.
Explain the reasoning which helped you develop your equation.
In years, how old were you when the youngest person was born?
At some point during the lives of you and the youngest person, your age will be three times his/her age at that moment. Write an equation which models how old in years each of you will be when you are three times as old as the younger person.
Explain the reasoning which helped you develop your equation.
Solve the equation for your ages when you are three times as old as the youngest person. Are your answers reasonable?
Respond to at least two of your classmates’ postings. Check their equations and investigate for mathematical errors. Help with a constructive critique.

Similar Questions

1. DIFFICULT MATH

Okay I've been working on this for 10 hours straight and cannot get it. This is a math problem from my teacher who just loves to add these frustrating math questions at the end of the worksheet. It says: If you add the age of a man …
2. Math

2x represents that Clyde is twice (2 times) as old as Bonnie. 6 years from now, Clyde will be twice as old as his cousin Bonnie will be then. If Clyde is now 16 years old, how many years old is Bonnie?
3. math

My mother and I are the same age – only the numbers are reversed (21,12 for example) Twelve years ago my mom was twice as old as me. So how old is my mommy and how old am I?
4. math

A. A woman was 30 years old when her daughter was born.Her age is now 6 years more than three times her daughter's age. How old will the daughter be in 5 years?
5. MATH HELP

Sam and Harry are family. Sam is currently is three times Harry's age. Sam's age is also 10 more than twice Harry's age. What are their current ages?
6. MATH HELP

1.Which ordered pair is the solution to y = 2x + 10?
7. Math

Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x-2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: …
8. Geometry

Let x equal the age, in human years, for a dog that is 2 years old or older. For each of your chosen breeds, write an expression to model its age in dog years. [Hint: Use (x-2) in each expression.] the dogs are 2yrs: 23 yrs old 3yrs: …
9. Math

Hi can someone please help me? A recent study gave the information shown in the table about ages of children receiving toys. The percentages represent all toys sold. Age (years) Percentage of Toys 2 and under 3-5 6-9 10-12 13 and over
10. Java Computer Science

So in math, a restriction can be set. For example 30<x<60. So I'm trying to do this in a Java else if statement. else if (x>30 && x<60) {, will that do the same thing. Because I did that in my program but I'm getting my …

More Similar Questions