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pogonyaev
2 years ago
8

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

Mathematics
2 answers:
erik [133]2 years ago
5 0

Answer:

40

Step-by-step explanation:

5 times 3 is 15

15 times 2 is 30

4 times 2.5 is 10

30 plus 10 equals 40

LUCKY_DIMON [66]2 years ago
4 0

Answer:

it is 55 the 2nd one

5(9)+10=55

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Step-by-step explanation:

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The sum of a number and 5 is the same as saying n + 5

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Because n is an unknown variable we have to separate the sum of n and 5 from being multiplied by 3 with parenthesis. We do this because if we want to multiply 3 by the sum of n and 5. If we put 3 * n + 5 we are only multiplying the unknown variable by 3 not including the 5 that is added to it.

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2 years ago
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Two questions in 1 more points added​
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