Angela is going on vacation to mexico. she needs to buy new shirts for her trip. she buys 10 new shirts that cost her a total of $222. some are casual shirts that cost her $18 each. the other are dressy shirts that cost her $25. how many of each did she purchase?

Angela bought 4 casual shirts, and 6 dressy shirts.

To find this, I used the equation ($18c) + ($25d) = $222, and filled in for c (casual) and d (dressy) until the outcomes were the same. Filling in for c and d, you'll get ($18 * 4) + ($25 * 6) = $222. Solving both sides, you'll get $72 + $150 = $222 or $222 = $222. Thus meaning she bought 4 casual shirts and 6 dressy shirts,

I hope this helps!

b or 2, just plug these equations into your graphing calculator then check the graph to see the image. if it matches up then that's your answer!