Answer:
The usually speed of the bus is 50 miles/h.
Step-by-step explanation:
Let the usual speed of the bus be x mile/hour.
We know that
The bus travels 200 miles.
To reach its destination it takes time h
This week however the bus leaves at 5:40.
The bus late 40 minutes
Now the speed of the bus is = (x+10) miles/h
The new time to reach the destination is h
According to the problem,
⇒2(x²+10x)=200×10×3
⇒x²+10x = 3000
⇒x²+10x -3000=0
⇒x²+60x-50x-3000=0
⇒x(x+60)-50(x+60)=0
⇒(x+60)(x-50)=0
⇒x= -60,50
∴x=50 [since speed does not negative]
The usually speed of the bus is 50 miles/h.
Answer:
I believe the variable N would be 100,000 because it is saying that tickets are $50 a person so you have to multiply that by how many people are at the stadium. So you would do 50(100,000) which equals 5,000,000.
Step-by-step explanation:
Explanation is in the answer above.
Answer: 70%
Step-by-step explanation:
Total number of jersey = 50.
Total number of medium sized jersey = 35
The percent of the jerseys that are medium sized jerseys will be:
= Number of medium sized / Total number of jersey × 100
= 35 / 50 × 100
= 70%
Each lion has 1 head. The number of lion heads is L .
Each bird has 1 head. The number of bird heads is B.
The total number of heads of all species is (L + B) = 30
Each lion has 4 feet. The number of lion feet is 4L .
Each bird has 2 feet. The number of bird feet is 2B .
The total number of feet of all species is (4L + 2B) = 100
The system of linear equations is:
L + B = 30
4L + 2B = 100 .