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Comparing travel. A plane can fly 300 miles
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Comparing travel. A plane can fly 300 miles
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Question 921359: I really need your help in solving this problem. I appreciate your time and efforts. Have a terrific evening :) Here is the question?
Comparing travel. A plane can fly 300 miles in the same time as it takes a car to go 120 miles. If the car travels 90 mph slower than the plane, find the speed of the plane?
This data table is filled to show two equations in the two unknowns, r and t, using RATE*TIME=DISTANCE. You need to perform the necessary algebraic steps to solve for r and t. You may need to use two substitutions, and you may find a quadratic equation resulting in the process.
Okay, I saw your latest message; but TRY solving the system. The process is simpler than I thought. No need for any quadratic in the process.
Do that solving properly and you should find ; ;
and .
You can put this solution on YOUR website!
I really need your help in solving this problem. I appreciate your time and efforts. Have a terrific evening :) Here is the question?
Comparing travel. A plane can fly 300 miles in the same time as it takes a car to go 120 miles. If the car travels 90 mph slower than the plane, find the speed of the plane?
Let speed of plane be S
Then speed of car = S – 90 ----- Both cover respective distances in the same amount of time
300(S – 90) = 120(S) ------ Cross-multiplying
300S – 27,000 = 120S
300S – 120S = 27,000
180S = 27,000
S, or speed of plane = , or mph
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