Kaiduke369 Kaiduke369

30-10-2020
Mathematics

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What is the value of the expression 5y2 + 4x when x = 2.5 and y = 3?

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30-10-2020

Answer:
47.5

Explanation:
5 • 2.5 • 3 + 4 • 2.5

To make the calculation easier, factor the expression
2.5(5•3+4)

Multiply the numbers
2.5(15+4)

Add the numbers
2.5•19

Multiply the numbers
47.5

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