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nika2105 [10]
3 years ago
15

A car travelled 216km at an average speed of 48km/h.On the return journey the average speed increased to 72km/h.Calculate the av

erage speed,in km/h for the whole journey​

Mathematics
1 answer:
mel-nik [20]3 years ago
3 0

Answer:120km/hr

Step-by-step explanation:

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Answer:

x = 1 and y = 2

Step-by-step explanation:

Let apples are represented by x

and let oranges are represented by y

You purchase 5 pounds of apples and 2 pounds of oranges for $9. This line in equation format can be written as:

5x + 2y = 9

Your friend purchases 5 pounds of apples and 6 pounds of oranges for $17.

This line in equation format can be written as:

5x + 6y = 17

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We can solve these equations to find the value of x and y.

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-     -         -

_________

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