Answered

IDNLearn.com offers a collaborative platform for sharing and gaining knowledge. Discover in-depth and reliable answers to all your questions from our knowledgeable community members who are always ready to assist.

Sarah is twice as old as John. Six years ago, Sarah was 4 times as old as John was then. How old is John now?

Sagot :

Kate200468idn
[tex]J- John's\ age\ now\\S-Sarah's\ age\ now\\\\S=2J\ \ \ and\ \ \ S-6=4(J-6)\ \ \ \Rightarrow\ \ \ 2J-6=4J-24\\\\2J-4J=-24+6\\\\-2J=-18\ /:(-2)\\\\J=9\\\\Ans.\ Now\ John\ is\ 9.[/tex]
Dannymalidn
S = 2J
S - 6 = 4(J - 6)
S - 6 = 4J - 24
2J - 6 = 4J - 24
-2J = -18
-J = -9
J = 9

18 = 2(9)
12 = 4(9 - 6)
12 = 12!

Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. Thank you for choosing IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more solutions.