Divide 128 by 4. Then multiply that by 3 to get the answer for the weight of box A.
Yes. Easiest way too find it is plug them into your calculator, both solutions are .55555556. But if you don't have a calculator you can try to make the bottom numbers the same by seeing what they have in common...9. So 45/5=9 and 27/3=9. Then do the same to the top 25/5=5 and 15/3=5. Now we have 5/9 and 5/9 which are the same so they have the same proportions
Step-by-step explanation:
45 6
13 6
_____ +
02 6
1
________
6 /..8
..... -6
_______
..... 2
0
_______
6/5
...5
_____
0
Answer:21
Step-by-step explanation:2x21=42