The product of 2 and the second power of y in algebraic expression

1 answer:

8 0

Algebraic expression of product of 2 and the second power of y
=> Algebraic expression is a combination of integers (numbers), variables (a, b, c, x, y, ….), exponent (2 5 3 …) that is a rational number and algebraic operations like subtraction (-), addition (+), multiplication (x) and division (/).
=> Product – result of multiplication
=> second power of y = y2
=> 2 x y2

Thus, the algebraic expression of product of 2 and the second power of y is equals to 2 x y2

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The number of kilograms of water in a human body varies directly as the mass of the body. An 87-kg person contains 58 kg of wat

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Answer:

50 kg water.

Step-by-step explanation:

We have been given that the number of kilograms of water in a human body varies directly as the mass of the body.

We know that two directly proportional quantities are in form $y=kx$ , where y varies directly with x and k is constant of variation.

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Let us find the constant of variation as:

$\frac{58}{87}=\frac{k\cdot 87}{87}$

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The equation $y=\frac{2}{3}x$ represents the relation between water (y) in a human body with respect to mass of the body (x).

To find the amount of water in a 75-kg person, we will substitute $x=75$ in our given equation and solve for y.

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