Flying against the , a jet travels 2850 miles in 3 hoursFlying with the Jetstream, the same travels 8190 miles in 7 hours. What is the rate of the in still and what is the rate of the Jetstream ?
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Answer:
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ALGEBRA
Joey C. asked • 07/15/15
Flying against the wind, a jet travels 1860 mi in 3 hours.
Flying against the wind, a jet travels 1860 mi in 3 hours. Flying with the wind, the same jet travels 9180 mi in 9 hours. What is the rate of the jet in still air and what is the rate of the wind?
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Andrew M. answered • 07/15/15
TUTOR New to Wyzant
Mathematics - Algebra a Specialty / F.I.T. Grad - B.S. w/Honors
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Let J = rate of jet in still air
Let W = rate of wind
Distance formula: d = rt so r = d/t
Flying against the wind the Jet flies at a rate of J - W = 1860mi/3hrs = 620 mph
Flying with the wind the Jet flies at a rate of J+W = 9180mi/9hrs = 1020 mph
The average of these two rate is the speed of the Jet in still air
J = (620+1020)/2 = 820 mph
J - W = 620 so
820 - W = 620
W = 820 - 620 = 200 mph
The Jet in still air flies at a rate of 820 mph
The wind speed is 200 mph
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Step-by-step explanation:
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Answers
9514 1404 393
Answer:
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Step-by-step explanation:
Let x and y represent servings of green beans and shrimp, respectively. Then the number of grams of carbohydrate in the meal is ...
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The solution to these equations can be found by your favorite method to be ...
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Answers
Answer:
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Step-by-step explanation:
Quarter = 0.25
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Answers
Answer:
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Step-by-step explanation:
8% in decimal form is written out as 0.08, so right away the answer is either C or D.
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Answers
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Step-by-step explanation:
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Answers
Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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Add 5y to both sides
10 = 5y + 20
Subtract 20 from both sides
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Step-by-step explanation:
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Answers:
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========================================
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Answer:
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Step-by-step explanation:
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Step-by-step explanation:
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Answer:
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Answers
9514 1404 393
Answer:
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Step-by-step explanation:
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Answers
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Answers
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Answer:
don't know this answer closely relates to
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90 + 30+60=180
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and ironed 300 shirts. Graphically solve a system of equations in order to determine
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Answers
Answer:
∴ Eli worked for 8 hours and Claire worked for 9 hours
Step-by-step explanation:
Let us form the two equations then graph them
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∵ Claire worked for y hours
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∵ Claire can iron 20 shirts per hour
∵ They ironed 300 shirts together in 17 hours
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→ In equation 1, put x = 0
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→ Put y = 0 and find x
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Draw the first line using points (0, 17) and (17, 0)
Draw the second line using points (0, 15) and (20, 0)
The graph is attached down
From the graph
The red line represents equation (1)
The blue line represents equation (2)
The two lines intersected at point (8, 9) which is the solution of the system of equations
∴ The solution of the two equations is (8, 9)
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