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3 years ago

It takes a plane 3.5 hours to fly 2,345 miles and 2 hours to fly 860 miles

Mathematics

2 answers:

Rudik [331]3 years ago

8 0

Answer:

a) 670mph

b) 430mph

c) s+w=670 and s-w=430, use the substitution method

d) 2s=1100

w=550-430

s=550 mph

w=120 mph

e)120 mph

f)550 mph

Step-by-step explanation:

Hope this helps! The other User deserves all the Thanks, ratings and brainliest

Ilya [14]3 years ago

3 0

Answer:

See below

Step-by-step explanation:

a. How fast does the plane fly during the first leg of the trip?

2345/3.5 = 670 mph

b. How fast does the plane fly during the last leg of the trip?

860/2 = 430 mph

c. What system of equations might be helpful in this scenario?

<u>s - speed of the plane, w - speed of the wind, equations:</u>

s + w = 670
s - w = 430

d. Solve this system of equations using the best method.

Add the equation together to get:

2s = 1100 ⇒ s = 550 mph
w = 550 - 430 = 120 mph

e. How fast is the wind?

120 mph as solved above

f. How fast does the plane fly without any wind?

550 mph as solved above

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