Respuesta :
Answer:
The cow with 4 legs is going 50 miles per hour, while the cow with two legs is going 40 miles per hour.
Step-by-step explanation:
Take the 500 miles apart from your question and divide it by 10 (the hours) after that you get your total: 50 for the 4 legged cow. Minus 10 to get the two legged cow.
Answer: the speed if the 4 legged cow is 30 mph while the speed of the 2 legged cow is 20 mph
Step-by-step explanation:
One cow has 4 legs, the other cow has 2 legs.
Let x represent the speed of the cow with with four legs.
Let y represent the speed of the cow with 2 legs.
The rate of the cow with 2 legs is 10 mph less than the rate of the other cow. This means that
y = x - 10 - - - - - - - 1
Distance = speed × time
After 10 hours, the cows were 500 miles apart.
Distance travelled by the 4 legged cow is
x × 10 = 10x mph
Distance travelled by the 2 legged cow in 10 hours is
y × 10 = 10y mph
Since they are 500 miles apart, it means that the total distance covered by both cows is 500 miles. Therefore,
10x + 10y = 500
x + y = 50 - - - - - - - 2
Substituting equation 1 into equation 2, it becomes
x + x - 10 = 50
2x = 50 + 10 = 60
x = 60/2 = 30
y = x - 10
y = 30 - 10 = 20