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stiks02 [169]
3 years ago
10

What is 8.154 to 1 decimal place?​

Mathematics
1 answer:
ddd [48]3 years ago
4 0
What is 8.154 rounded to 2 decimal places?" is the same as asking, "What is 8.154 rounded to two decimal points?" or "How to round 8.154 to two decimal places."

The main point is that you want to round 8.154 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 8.154. To eliminate the last digit in 8.154, we use the following Two Decimal Places Rules to get the answer:

Two Decimal Places Rule #1: If the last digit in 8.154 is less than 5, then remove the last digit.

Two Decimal Places Rule #2: If the last digit in 8.154 is 5 or more and the second to the last digit in 8.154 is less than 9, then remove the last digit and add 1 to the second to the last digit.
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Change speed of 630 kilometre per hour to a speed in in metre per second​.<br>pls very quick
Kamila [148]
175 meter per second
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He table shows the height of water in a pool as it is being filled.
andrew11 [14]

Answer:

8, 12, 16, 20, 24

Step-by-step explanation:

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3 years ago
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Carlos and Maria drove a total of 233 miles in 4.4 hours. Carlos drove the first part of the trip and averaged 55 miles per hour
Mandarinka [93]
Let x - hours Carlos drove ; Let y - hours Maria drove

Equation 1: x + y = 4.4
x = 4.4 - y

Equation 2: 55x + 50y = 233
55(4.4 - y) + 50y = 233
242 - 55y + 50y = 233
-5y = 233-242
-5y = -9
y=9/5 or 1.8 hours Maria drove

To find time Carlos drove:
x=4.4 - 1.8
x = 2.6 hours

3 0
4 years ago
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Find the perimeter of a rectangular pool.
Jlenok [28]

Answer:

=> 216

Step-by-step explanation:

perimeter of the rectangular pool is

=> 2(l+b)

=> 2( 45.7 + 62.3 )

=> 2(108.0)

=> 216

3 0
3 years ago
Read 2 more answers
7x+1/2(x+1/4)=3(6x-9)-8
ycow [4]

Answer:

x = 381/24 = 3 29/84

Step-by-step explanation:

7x + 1/2(x + 1/4) = 3(6x - 9) - 8

<em>Use the distributive property to multiply 1/2 by x + 1/4.</em>

7x + 1/2x + 1/8 = 3(6x - 9) - 8

<em>Combine 7x (14/2x) and 1/2x to get 15/2</em>.

15/2x + 1/8 = 3(6x - 9) - 8

<em>Use the distributive property to multiply 3 by 6x - 9.</em>

15/2x + 1/8 = 18x - 27 - 8

<em>Subtract 8 from -27 to get -35.</em>

15/2x + 1/8 = 18x - 35

<em>Subtract 18x from both sides.</em>

-21/2x + 1/8 = -35

<em>Subtract 1/8 from both sides.</em>

-21/2x = -35 - 1/8

<em>-35 is the same as -280/8</em>.

-21/2x = (-280 - 1)/8

<em>Subtract 1 from -280 to get -281.</em>

-21/2x = -281/8

<em>Multiply both sides by -2/21 (reciprocal of -21/2).</em>

x = (-281 * -2)/(8 * 21)<em> </em>

<em>You can cross cancel -2 and 8</em> <em>by extracting 2 (they become -1 and 4 respectively).</em>

x = (-281 * -1)/(4 * 21)

<em>Multiply -281 by -1 to get 281.</em>

x = 281/(4 * 21)

<em>Multiply 4 by 21 to get 84.</em>

x = 281/84

<em>Can this fraction be simplified into a mixed number? Yes it can. It becomes 3 29/84. (252 (3 * 84) + 29 = 281)</em>

x = 3 29/84

Work check: x is substituted for 281/84 (convenience)

7 * 281/84 + 1/2(281/84 + 1/4) = 3((6 * 281)/84 - 9) - 8

1967/84 + 1/2(281/84 + 1/4) = 3((6 * 281)/84 - 9) - 8

1967/84 + 1/2(302/84) = 3((6 * 281)/84 - 9) - 8

(1967 + 151)/84 = 3((6 * 281)/84 - 9) - 8

2118/84 = 3(1686/84 - 9) - 8

2118/84 = 3((1686 - 756)/84) - 8

2118/84 = 3(930/84) - 8

2118/84 = 2790/84 - 672/84

2118/84 = (2790 - 672)/84

2118/84 = 2118/84

So x = 3 29/84 is correct.

5 0
3 years ago
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