landonreed7962 landonreed7962

03-10-2019
Mathematics

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3. A jet took one hour longer flying to Lincoln from Adams at 800 km/h than to return at

1200 km/h. Find the distance from Lincoln to Adams.

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zrh2sfo zrh2sfo

03-10-2019

Answer:

2400 km

Step-by-step explanation:

distance=rate*time

d=rt

d=(800)(t+1)

d=(1200)(t)

the right sides are both equal to d so set them equal to each other

800(t+1)=1200(t)

800t+800=1200t

800=1200t-800t

800=400t

t=800/400

t=2 hours

d=1200*2

d=2400 km

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