nalutail456 nalutail456

16-12-2014
Mathematics

Answered

Lucas had $272 and Kelly had $804. Both of them spent the same amount of money. The ratio of Lucas' to Kelly's money than became 2:9. How much did they spend altogether?

Answer :

16-12-2014

[tex]x-\ money\ spend\\\\ \frac{272-x}{804-x}=\frac{2}{9}\ \ \ \ | cross\ multiplication\\\\ 9(272-x)=2(804-x)\\\\ 2448-9x=1608-2x\ \ \ | add\ 2x\\\\ 2448-7x=1608 \ \ \ | subtract\ 2448\\\\ -7x=-840\ \ \ | divide\ by\ -7\\\\x=120\\\\ They\ spend\ together\ 240\$[/tex]

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kothwalp kothwalp

14-12-2020

Answer:

the answer for the question is 240$

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