Dive into the world of knowledge and get your queries resolved at IDNLearn.com. Our experts provide timely and accurate responses to help you navigate any topic or issue with confidence.

If Chris and Lisa went shopping and spent a total of $25.50 and Lisa spent $13.50 more then Chris spent. How much did Lisa spend?

Sagot :

[tex]x-\ Lisa\\ y-\ Chris\\\\ x+y=25.50\\ x-13.5=y\\\\ x+x-13.5=25.50\ \ \ | add\ 13.50\\\\ 2x=39\ \ \ | divide\ by\ 2\\\\ x=19.50\\\\ Lisa\ spent\ 19.50 \$[/tex]


I think you just subtract the total - the money lisa spent

lets try it

25.50$-13.50$ = 12$

so we all know that its 12$

wanna PROVE IT , try adding 12$+13.50$ =

it will give us the total ;p