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OlgaM077 [116]
3 years ago
14

A scientist estimated that a mixture would need 6 milliliters of a chemical to balance. The actual amount needed was 7 millilite

rs. What was the percent error of the scientist's estimation?
Mathematics
1 answer:
Mashcka [7]3 years ago
6 0
Percent relative error is calculated by the formula: (experimental value - literature value/ experimental value) x 100%

Therefore, (6-7/7) x 100% = 14.3%
Your answer is in absolute value :)
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How many integers from 1 through 100 are neither multiples of 2 nor multiples of 3 ?
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----------------------------------------------------------------------------
Find total number of integers
----------------------------------------------------------------------------
Number of integers from 1 to 100 = 100
There are 100 numbers altogether

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Find total numbers that can be divided by 2
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Number that are multiples of 2 = 100 ÷ 2 = 50
50 of the number are multiples of  2

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Find total numbers that are multiples of 3
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Numbers that are multiples of 3 = 100 ÷ 3 = 33 R 1
33 of the numbers are multiples of 3

Of the 33 numbers that are multiples of 3, half of the numbers are even and had been included in multiples of 2.
33 ÷ 2 = 16 R 1

33 - 16 = 17
17 of the numbers are multiples of 3

----------------------------------------------------------------------------
Total numbers that can be multiples of 2 or 3
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50 + 17 = 67

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Total number that are neither multiples of 2 nor 3
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100 - 67 = 33

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Ans: 33 integers are neither multiples of 2 nor multiples  3
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8 0
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