72:80
9:10
Divide 72 and 80 by 8 to simplify it and get the ratio
Answer:
I'm not 100% sure, but I think it's 3
Answer:
-0.0625
Step-by-step explanation:
A farm had 480 acres more wheat than corn. Let use "W" to represent the Wheat and let use "C" to represent the corn. Hence, we have below:
W=C+480
The farmers collected 80% of the wheat and 25% of the corn and the area of the wheat is 300 acres less than the area of the corn:
W-0.8W=C-0.25C+300
0.2W=0.75C+300
We have two equations, two unknowns:
0.2(C+480)=0.75C+300
0.2C+96=0.75C+300
0.55C=294
C=534.55
A healthy 140 pound boy needs between 2,000 to 2,400 calories a day.
Hope that helps :)
