2 years ago

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Mathematics

1 answer:

Pani-rosa [81]2 years ago

4 0

Answer:

Step-by-step explanation:

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Entire distance = 1,320
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bus avg = 40 km/h
plane avg = 600 km/h

Working this by trial and error
1 hour bus 4 hour plane = 40 + 2,400 = 2,800 distance (too high)
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So, they traveled 3 hours by bus and 2 hours by plane
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3 years ago

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Mashcka [7]

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Step-by-step explanation:

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3 years ago

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Use the Binomial expansion theorem to find and simplify each term.

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