I think the answer is A,B, and D.
Where these the answers?
Answer:
We have l = 2w and 2l + 2w = 100 inches;
Then 4w + 2w = 100 inches;
6w = 100 inches;
w = 16.6;
l = 3 x 16.6;
l = 49.8 inches;
Step-by-step explanation:
The ostrich can run 20 miles in 40 minutes.
<u>Solution:</u>
Given that, An ostrich run 6 mile in 12 minutes
We have to find how far he could come in 40 minutes
Now, according to the given information
Ostrich runs 6 miles ⇒ 12 minutes
Then, “n” miles ⇒ 40 minutes
Now, by criss cross multiplication we get,

Hence, the ostrich can run 20 miles in 40 minutes
Answer:
10x +17y=c (C is the total cost)