Azalia is selling fresh hoodies and beanies. Each beanie costs $12 and each hoodie costs $20. Azalia sold a total of 25 items and made $380. How many beanies did Azalia sell?

Question

I need help with this.

Answer 1

let h is the number of hoodies sold and b is the number of beanies sold

we have h+b=25 (1)  and 20h+12b=380 or deviding both sides by 4 --->>> 5h+3b=95 (2)

from the (1) we get h=25-b and plugging this value to (2) we get 5(25-b)+3b=95 --->>> 125-5b+3b=95

and 125-95=5b-3b --->>>  30=2b  -->>> b=30/2 = 15 beanies

so Azalia sold 15 beanies (and 10 hoodies)