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expeople1 [14]
3 years ago
5

12,781 rounded to the nearest hundred

Mathematics
2 answers:
Vitek1552 [10]3 years ago
8 0

12,800

cause the hundreths place is at the 7

and the number is 781

if its 50 or over you round up 81 is over so youll make it 800

Digiron [165]3 years ago
7 0

First, identify the digit in the hundreds place.

12,781

Left 1 - ten-thousands place

2 - thousands place

<em>7 - hundreds place - </em>the one we are interested in

8 - tens place

Right 1 - ones place

Now we know the 7 is in the hundreds place.

12,781

To round off to the nearest 100, all digits to the right of the digit in the hundreds place become zero.

12,781 becomes first 12,700, but now we need one more step.

Look in the original number at the digit just to the right of the hundreds digit. It is an 8. Since 8 is greater than or equal to 5, the previous digit goes up by 1, so the 7 becomes an 8, as in 12,800, and the rounded number is 12,800.

Answer: 12,800

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lukranit [14]
Work from left to right 
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= 2.56 - 1.48
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6 0
3 years ago
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A rectangular lawn, 100 feet long by 50 feet wide, is to have two sidewalks installed that will cut the lawn in half both ways,
Damm [24]

Answer:

3.41 feet

Step-by-step explanation:

Area = Length × Breath

Area of the rectangular lawn = 100 × 50

                                                = 5000 feet²

The sidewalk must occupy an area no more than 10% of the total lawn area.

So, the area of the sidewalk would be not more than  = 10% × 5000

                                                                                         = 0.10 × 5000

                                                                                        = 500 feet²

Let the width of the sidewalk = x feet

area of the side walk = (L×W of the long way) + ((L-x)×W of the short way)

(100 × x) + ((50 - x) × x) < 500

100x + (50-x)(x) < 500

-x²  + 150x < 500

-x² + 150x = 500

-x² + 150x - 500 = 0

By using quadratic formula

x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}

x=\frac{(-150)\pm\sqrt{(150)^2-4(-1)(-500)} }{2(-1)}

x=\frac{-150\pm \sqrt{20500} }{-2}

x=75-5\sqrt{205} or x=75+5\sqrt{205}

x = 3.41089 ≈ 3.41 feet  or  x = 146.58

Therefore, width of the sidewalk would be 3.41 feet.

5 0
3 years ago
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astra-53 [7]

Answer:

4

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4 ..... Answer

Hope this helps!

7 0
3 years ago
Scott rented a truck for a day there was a base fee of $14.95 and there was an additional charge of $0.83 for each mile driven S
Mademuasel [1]

Answer:

288

Step-by-step explanation:

1. Subtract 14.95 from 253.99

2. Then you are going to divide 239.04 by 0.83

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What is the value of the x variable in the solution to the following system of equations?
harkovskaia [24]
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