the mean of 22.3 19.7 25.4 and another number is 23.4 find the missing number

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03-05-2017
Mathematics

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the mean of 22.3 19.7 25.4 and another number is 23.4 find the missing number

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In scientific notation, what is the sum of 2.3 times 10^{-3} and 5.4 times 10^{-4}?a. 2.84 times 10^{-3}b. 5.63 times 10^{-3}c. 7.7 times 10^{-7}d. 12.42 times

What value of x makes the equation true ? 4(2x-4)=16

xcieo xcieo · Answer 1 · 2017-05-03T17:05:55+02:00

xcieo xcieo

03-05-2017

the way you get the average is add all the numbers and divide it by the amount of numbers there so reverse it 23.4 * 4 - all the numbers should give you the answer ;))

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