Answer:
160
Step-by-step explanation:
If out of 30 7th graders, 12 own a dog then when you have 400 of them, 160 will have a dog as well.
The way I did this was by 400/30: which was 13.3 repeating. I then mutliplied this number by 12, to find the final answer of 160.
Answer:19
Step-by-step explanation:
7x3=21
21-2=19
Answer:
(1/2,0)
Step-by-step explanation:
We can divide 143.50 by 7. This gives us 20.5. This means that she works 20.5 hours a week or 21 hours if you round up.
Answer:
18
Step-by-step explanation:
because 20% of 90 is 18