MENU


Find Sarah's Age Today

Post a reply

Find Sarah's Age Today

Postby nycmath » Fri Aug 21, 2026 11:12 pm

See attachment.
Attachments
Screenshot_20260821_230740_Facebook.jpg
Screenshot_20260821_230740_Facebook.jpg (113.03 KiB) Viewed 12 times
nycmath
 
Posts: 436
Joined: Mon Aug 10, 2026 10:40 pm
Reputation: 7
Top

Re: Find Sarah's Age Today

Postby Eigenvalue » Sat Aug 22, 2026 9:51 am

Let D be David's current age and S be Sarah's current age
D-5=3(S-5)

D+S=46

D=3S-10

4S-10=46

4S=56

S=14

D=32

Eigenvalue
 
Posts: 202
Joined: Mon Aug 10, 2026 10:38 pm
Reputation: 86
Top

Re: Find Sarah's Age Today

Postby nycmath » Sat Aug 22, 2026 3:35 pm

Eigenvalue wrote:Let D be David's current age and S be Sarah's current age
D-5=3(S-5)

D+S=46

D=3S-10

4S-10=46

4S=56

S=14

D=32


Correct. You know, I was 32 in 1997. Boy, I miss my youth big time!

nycmath
 
Posts: 436
Joined: Mon Aug 10, 2026 10:40 pm
Reputation: 7
Top
Post a reply

Return to Algebra 1



Who is online

Users browsing this forum: No registered users and 1 guest