I have an URGENT question! Will fan and medal!
@jim_thompson5910 could you help on this question?
Curious: What makes this question "urgent?"
Represent the two girls' ages by the letters h and a (the first letters of their names).
"The sum of the ages of the two girls is 92." If those ages are represented by a and h, write an equation for this fact.
@mathmale the reason why its urgent is because I have to turn this in to my online school teacher soon and I have more questions. And would the equation be 2h + a = 92? I don't know what you're asking actually, haha.
I'm asking you to represent your unknown quantities with letters: a and h. What is the expression for the SUM of these two quantities?
a + h? @mathmale
Yes, that's the sum of the ages of the 2 girls. What is that sum = to? (It was given)
reread the problem statement,please.
a + h = 92. @mathmale
Very good. Now you have 1 of the 2 equations you need to solve this problem for a and h. Reread the problem carefully. Which girl is the older one? How would you express her age in terms of the age of the younger girl? What does "consecutive odd integer" mean?
Hannah is older. And the rest, I have no clue. Could you walk me through it? I'm teaching ourselves, so i have no prior knowledge to this. @mathmale
a=younger girl's age h=Hannah's age; she is the older girl Consecutive integers include 2, 3, 4, 5, 6, etc. Consecutive even integers include 2, 4, 6, 8, etc. Consecutive odd integers include 1, 3, 5, 7, 9, etc. In the latter 2 cases, the difference from one age to the next is 2 years. Therefore, h=a+2. True or false?
True or false: Hanna is 2 years older than her sister. (Why?)
Look. If the younger sister were 15, and Hannah's age were the next consecutive odd integer, Hanna would be 17 years old. Thus, a+2=h is true. This gives us 2 equations to work with and solve simultaneously. a+2=h a + h = 92 Substitute the expression for h in to the second equation, please. (Through out h from the 2nd equation and replace it with the expression for h (first equation).
@mathmale I'm sorry, I feel like I'm frustrating you. When I did what you said, I got an answer that isn't there.
@jim_thompson5910 do you mind helping? i don't think my friend mathmale is going to respond.
ok let me read it over
@daisydallon do you agree that consecutive odd integers are things like 1,3,5,7,9,11, etc?
@jim_thompson5910 yes.
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