the greater of two numbers is 10more than the smaller. their sum is 38. Find the numbers?

Still Need Help?

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (sandra):

ok, so try and turn the first piece of information into an equation.

OpenStudy (anonymous):

how do i know which is x and y?

OpenStudy (sandra):

well, when you think about it, it's arbitrary. just pick in your head. so for this problem, let's say the greater number is X, and the smaller number is Y

OpenStudy (anonymous):

x=y=10?

OpenStudy (anonymous):

x= y +10?

Still Need Help?

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (sandra):

exactly =)

OpenStudy (sandra):

ok , so now try and turn the second piece of information into an equation. since again, you need two equations if you have two unknowns

OpenStudy (anonymous):

y+10+y=38
2y+10=38
2y=28 ???

OpenStudy (sandra):

!! great =)

OpenStudy (sandra):

and...

Still Need Help?

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (anonymous):

y=14

OpenStudy (sandra):

exactly =)

OpenStudy (sandra):

so what's x?

OpenStudy (anonymous):

24?

OpenStudy (sandra):

awesome job

Still Need Help?

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (sandra):

and yes

OpenStudy (sandra):

so X, the greater number is 24, and y, the smaller number is 14

OpenStudy (anonymous):

wow! It is much easier when there is someone helping

OpenStudy (anonymous):

thank you.

OpenStudy (anonymous):

I am going to work on a few more now while it is fresh in my head

Still Need Help?

Join the QuestionCove community and study together with friends!

Sign Up

OpenStudy (sandra):

no problem! good luck!

OpenStudy (sandra):

yep you got it =)

OpenStudy (anonymous):

my next problem says the greater of two numbers is 3 times the smaller. Would that meant I subtract?

OpenStudy (sandra):

nope. it basically means x = 3 * y (times)

OpenStudy (anonymous):

ok. thank you

Still Need Help?

Join the QuestionCove community and study together with friends!