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3 years ago

820 round to the nearest hundred

1 answer:

4 0

Hello! Seeings 20 is less than 50, you then need to round down. If its over 50 then you round up! So if you have 14 its rounded to 10. And if you have 16 round it to 20. So 820 is rounded to 800.

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X-Y-2Z =-11<br> X-2Y-Z = -11 <br> -X+Y+3Z = 14

Snowcat [4.5K]

9514 1404 393

Answer:

(X, Y, Z) = (-2, 3, 3)

Step-by-step explanation:

We can subtract the second equation from the first to get ...

Y -Z = 0

We can add the third equation to the first to get ...

Z = 3

Then ...

Y -3 = 0 ⇒ Y = 3

and ...

X -3 -2(3) = -11

X = -2 . . . . . . . . . add 9

The solution is ...

(X, Y, Z) = (-2, 3, 3)

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2 years ago

4.5 - d > 2.5 substitute 2.5 for d

den301095 [7]

Answer:

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Step-by-step explanation:

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2 years ago

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rosijanka [135]

Answer:

Step-by-step explanation:

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3 0

2 years ago

Read 2 more answers

The formula for the surface area of a cylinder with radius r and height h is at times twice the product of the

MrMuchimi

Answer:

<em> $2\pi \: rh + 2\pi {r}^{2} = 2(t \times {r}^{2} )$ </em>

Step-by-step explanation:

The TSA of the cylinder

$2\pi \: rh + 2\pi {r}^{2}$

In Mathematics, 'is' is =

Twice means 2( )

Product means ×

So we have

$2\pi \: rh + 2\pi {r}^{2} = 2(t \times {r}^{2} )$

as the answer.

6 0

3 years ago

A photocopier is purchased for $5200 and depreciates in value by 15% per year. Which equation best describes the value of the ph

Likurg_2 [28]

Answer:

y=5200(0.85)^x

Step-by-step explanation:

A photocopier is purchased for $5200 and depreciates in value by 15% per year. Which equation best describes the value of the photocopier in years? O.A. y=5200(1.15) OB. y = 5200(0_15) - O cy= 5200(1.85) ODy=5200(0.85)"

4 0

2 years ago