0
How would you solve this equation It takes 1 hour longer to fly to Saint Paul at 200 mi per hr than it does to return at 250 mi per hr How far away is Saint Paul?
Wiki User
∙ 13y ago
Time is distance/speed. Call the distance "d". So d/200=d/250 + 1.
Collect the terms in d together: d(1/200-1/250)=1
Multiply both sides by 200 x 250 (ie the common denominator on the left)
That's d(250-200) = 200 x 250 which is 50d =200x250 or d =4x250 =1000 miles
Check: 1000m at 200mph=5h, 1000m at 250mph =4h : difference 1h. OK,
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How do you solve a equation using unknown variables?
You don't use unknown variables to solve an equation. The purpose of solving an equation is to find the value of the variable so that it's no longer unknown.
What is the population of Saint-Solve?
The population of Saint-Solve is 395.
Why can't an equal 0 in a quadratic equation?
a is the coefficient of the x2 term. If is a = 0, then it is no longer a quadratic - it is just a linear equation, and the quadratic formula will not work to solve it.
Can you solve for a variable in an equation?
Sure. You can always 'solve for' a variable, and if it happens to be the only variable in the equation, than that's how you solve the equation.
Do you answer an equation?
you don't answer an equation, you solve an equation
What is the area of Saint-Solve?
The area of Saint-Solve is 5,840,000.0 square meters.
What are some ways to solve an equation?
solve it
What equation do you get when you solve 2x plus 3y 12 for y?
If you solve such an equation for "y", you get an equation in the slope-intercept form.
Can you solve the equation 3q 11 8q99?
It is not an equation if it does not have an equals sign. You could simplify it but not solve it.
How do you use division to solve a multiplication equation?
How do you use division to solve a multiplication equation?Answer this question…
Can you solve for a variable in an expression or equation?
you can only solve for one in an equation so it can equal something
How do you solve integers?
There is no such thing as "solving integers". You can solve an equation, which means finding all the unknowns in that equation, but you can't solve an integer.
