ShadowTiger
Answered

Discover a world of knowledge at Westonci.ca, where experts and enthusiasts come together to answer your questions. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

A family member has some five dollar bills and one dollar bills in their wallet. Altogether she has 18 bills and a total of $62. How many bills does she have?

Sagot :

naǫ
x - the number of five dollar bills
y - the number of one dollar bills

She has 18 bills in total.
[tex]x+y=18 \\ y=18-x[/tex]

She has $62.
[tex]5x+y=62 \\ y=62-5x[/tex]

Set both expressions equal to each other:
[tex]18-x=62-5x \\ -x+5x=62-18 \\ 4x=44 \\ x=11 \\ \\ y=18-x=18-11=7[/tex]

She has 11 five dollar bills and 7 one dollar bills.
Thanks for using our platform. We're always here to provide accurate and up-to-date answers to all your queries. Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. Find reliable answers at Westonci.ca. Visit us again for the latest updates and expert advice.