Answer:
10
Step-by-step explanation:
If ABCD is a rectangle, then AB=CD and AC=BD.
- AC=BD, so x+6=2x-4
- Subtract, -x+6=-4
- Subtract, -x=-10
- Make positive, x=10
Check work:
- 10+6=2(10)-4
- 10+6=20-4
- 16=16
5d + 10 - 4 = 13.50 <== ur equation
5d + 6 = 13.50
5d = 13.50 - 6
5d = 7.5
d = 7.5/5
d = 1.50 <== what each drink costs
Answer:
11. 600
12. 1,200
13. 600
14. 800
15. 1,100
Step-by-step explanation:
look at the number in the 'tens' column. if the number is between 1-4, you round down, if the number is between 5-9, you round up.