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harkovskaia [24]
4 years ago
9

(6.5 - -11) Explain the steps you did to get your answer.

Mathematics
1 answer:
iris [78.8K]4 years ago
7 0

Answer:

17.5

Step-by-step explanation:

it would turn into (6.5+11) because when two negatives are next to eachother it turns into a plus sign

add the numbers and get

17.5

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Answer:

  5/6

Step-by-step explanation:

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The number line shows 1/3 x 3/2. Which statement correctly describes how the product compares to one of its factors
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2 years ago
Water weighs 62.4 pounds per cubic foot. How much does the water in a tank that measures 7 ft × 4 ft × 9 in, weigh?
andriy [413]

Answer:

  • <u>1,310 lb</u>

Explanation:

<u>1) Calculate the volume of the water in the tank.</u>

  • Area of the base of the tank: B = 7 ft × 4 ft = 28 ft²
  • Height of the tank: H = 9 in = 9 in × 1 ft / 12 in = 0.75 ft
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<u>2) Calculate the weight of 21 ft³ of water.</u>

Since this is not a chemistry question but a math question, I will not use the fomula of density but set a proportion with one unknown:

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Solve for x:

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So, rounding to the next integer, the water in the tank weighs 1,310 pounds, when it is full.

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3 years ago
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