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2 years ago

Alicia buys a 5-pound bag of rocks for a fish tank. She uses 2 3/8 pounds for a small fish bowl How much is left?

Mathematics

1 answer:

Likurg_2 [28]2 years ago

5 0

Answer:

2.625 pounds are left or 2 5/8

Step-by-step explanation:

So if your going to be subtracting a fraction from a whole number your going to have to consider the fact that the whole number can be divided up into that fraction.

So in this equation we are subtracting 2 3/8 from 5, we are going to take one from 5 and make it into a fraction so we can subtract:

5 = 4 8/8

Now we subtract 2 3/8 from 4 8/8

4 8/8 - 2 3/8 = 2 5/8

so there's your answer 2 5/8 pounds are left over, but if you wanted the answer in a decimal you would divide 5 by 8:

5/8 = 0.625

you then add 0.625 to 2:

2 + 0.625 = 2.625

And that is also your answer: 2.625 lbs. were left over.

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2 years ago

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2 years ago

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2 years ago

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Step-by-step explanation:

(a) In right triangle ABC,

$AC^2 =AB^2 +BC^2 \\ = {12}^{2} + {5}^{2} \\ = 144 + 25 \\ = 169 \\ AC = \sqrt{169} \\ \therefore \: AC = 13\: m \\ \\ AC \: is \: the \: diameter \: of \: semicircle \\ \therefore \: r = \frac{1}{2} \times AC = \frac{1}{2} \times 13 = 6.5 \: m \\ Circumference \:of \:semi-circle \\ C = \pi \: r = 3.14 \times 6.5 = 20.41 \:m\:$

Perimeter of Balcony = 12 + 5 + 20.41 = 37.41 m

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$=\frac{1}{2}\times 12\times 5+\frac{1}{2} \pi r^2 \\\\=\times 6\times 5+\frac{1}{2} \times 3.14\times (6.5)^2 \\\\=30+\frac{1}{2} \times 3.14\times42.25\\\\= 30+\frac{1}{2} \times 132.665\\\\= 30 + 66.3325\\\\= 96.3325 \:m^2 \\\\\approx 96. 33\:m^2$

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3 years ago

Alicia buys a 5-pound bag of rocks for a fish tank. She uses 2 3/8 pounds for a small fish bowl How much is left?​

Alicia buys a 5-pound bag of rocks for a fish tank. She uses 2 3/8 pounds for a small fish bowl How much is left?