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4 years ago

Explain how to subtract 247 from 538?

1 answer:

7 0

1. 538 - 247 = ?

2. 8 - 7 = 1

3. You can't subtract 3 and 4, so you have to take number from 5 (turning it into a 4) and then you add a 1 right next to 3 (which makes it 13;13 - 4 = 9

4. 4 - 2 = 2

538 - 247 = 291

So the answer is 291.

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3 years ago

find the volume of metal required to make a closed box of thickness 1 cm with external measurements 12 cm × 7 cm × 10

noname [10]

Answer:

The volume of the metal is:

$V_{t}=548\: cm^{3}$

Step-by-step explanation:

First, let's find the volume of the front face of the square:

$V_{1}=12*7*1=84\: cm^{3}$

The back face is the same, so we have:

$V_{2}=84\: cm^{3}$

The volume of the side faces will be:

$V_{3}=7*10*1=70\: cm^{3}$

$V_{4}=70\: cm^{3}$

And finally, the volume of the top and bottom side faces of the box will be:

$V_{5}=12*10*1=120\: cm^{3}$

$V_{6}=120\: cm^{3}$

The total volume of the metal will be:

$V_{t}=V_{1}+V_{2}+V_{3}+V_{4}+V_{5}+V_{6}$

$V_{t}=2(84)+2(70)+2(120)$

$V_{t}=548\: cm^{3}$

I hope it helps you!

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3 years ago

If y = - 4/5x - 2, what is the value of x when y = - 9

Naya [18.7K]

Is the equation y = - 4/5x - 2 or <span>y = - 4/(5x - 2)?

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4 years ago

Fractions that equal to 1/5

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2/10 is one example of a fraction equal to 1/5

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3 years ago

Read 2 more answers

I need help with questions #3-4. I’m not sure if my steps are correct

zheka24 [161]

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4 years ago