Complete question :
On a flight New York to London an airplane travels at a constant speed. An equation relating the distance traveled in miles d to the number of hours flying t is t= 1/500d. How long will it take the airplane to travel 800 miles?
Answer:
1.6 hours
Step-by-step explanation:
Given the function :
Time t taken for flying distance d is given by:
t = 1/500 * d
Tine taken to fly 800 miles;
d = 800 miles
t = 1/500 * (800)
t = 800 / 500
t = 1.6
Hence, time t = 1.6 hours
Answer:
y and x stay constant
Step-by-step explanation:
linear equation
Answer:
Step-by-step explanation:
Given
Required
Ratio B(x) to A(x)
This is calculated as:
Express as fraction
Substitute: and
Apply law of indices
Answer:
112
Step-by-step explanation:
Define the variables:
x = number of French students sent by the school
Write the equation:
x / 21 = 1 / 3
Solve:
x = 7
The school sent 7 French students and 21 German students, for a total of 28 students.
The other 3 schools also sent 28 students. So the total number of students sent is:
4 × 28 = 112
Answer:
Yes, Beyonce will get the same solution.
Step-by-step explanation:
The given system is
2x - 3y = - 2
and
4x + y = 24
If she multiplies the first equation by -2 , she gets,
-4x+6y=4
4x + y = 24
Adding the two equations gives
7y=28
This means y=4
When we put y=4 into the bottom equation we get:
4x+4=24
4x=20
x=5
Therefore Beyonce will still get x=5, and y=4 as solution.
