MATHEMATICS HIGH SCHOOL

About 7/10 of the human body is water. If a person weighs 130 pounds about how many pounds are water?

Answers

Answer 1
Answer: Amount of water=(7/10) * Weiht of the person
Amount of water=0.7 * 130 pounds=91 pounds.

answer: 91 pounds of water.
Answer 2
Answer:

Final answer:

Given that the human body is about 70% water, a person who weighs 130 pounds would carry about 91 pounds of water weight.

Explanation:

The question is asking us to calculate the amount of water by weight in a human body. We can solve this by using a percentage (or a decimal equivalent) and multiplying that by the person's total weight. Given that 7/10 (or 70%) of the human body is water and the person weighs 130 pounds, we simply multiply 130 by 0.7 (the decimal equivalent of 7/10).

To calculate: 130 pounds * 0.7 = 91 pounds. Therefore, about 91 pounds of a person who weighs 130 pounds is water.

Learn more about Percentage Calculation here:

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Tyler's brother earns a commission. His commission is 4.5% of the amount he sells. Last week he sold $1400 worth of shoes. How much was his commission?

Answers

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(1.7x10^4) x (8.5x10^-2)

Answers

Step-by-step explanation:

(1.7x10^4) x (8.5x10^-2)

17000 × 0.085

= 1445

The volume of a rectangular box is (x3 - 7x2 - 9x + 63) cubic units. Determine the dimensions of the rectangular box by factoring the volume expression completely.

Answers

Hello,
well done.
As x^3-7x²-9x+63=(x-3)(x+3)(x-7) we must have x>3 and x>-3 and x>7 thus x>7

Explanations:
x^3-7x²-9x+63=x^3-9x+(-7x²+63)=x(x²-9)-7(x²-9)=(x²-9)(x-7)=(x+3)(x-3)(x-7)

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Answers

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Answers

Not completely sure on this one, but the answer I would go with is C (21) because if you factor it out it is 3x7. Both of these numbers are prime. The only thing that is confusing me in your question is the 3x3x3. if you are just asking what 3x3x3 is, then it is 9... so A.

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Which set represents the range of the function shown? {(8,2),(6,5),(4,7),(11,-2)}

A.) {-2, 2, 5, 7}

B.) {4,6,8,11}

C.) {(2,8),(5,6),(7,4),(-2,11)

D.) {-2,2,4,5,6,7,8,11}

Answers

Answer:

  A.)  {-2, 2, 5, 7}

Step-by-step explanation:

The range of a set of ordered pairs is the set of second numbers in the pairs.

Here, the second numbers are 2, 5, 7, -2. When written as a set, it is convenient (though not required) that they be written in numerical order:

  {-2, 2, 5, 7} . . . . matches choice A

Answer:

A.)  {-2, 2, 5, 7}

Step-by-step explanation:
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