Hi there, first divide 24 by 80: 24÷80=30, Therefore, 24 is 30% of 80
12×10+15y=390
120+15y=390
15y=270
y=18
So 18 adult t-shirts were sold
Answer
I am not 100% sure on this, but I think that this is the answer. x=8
Step-by-step explanation:
Here is the equation that I made
4x+17+x+23=80
Let me know if it was right :)
1. perimeter = 4 and area = 1
2. permeter = 8 and area = 4
3. perimeter = 12 and area = 9
4. perimeter = 16 and area = 16
5. perimeter = 20 and area = 25
