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Novay_Z [31]
3 years ago
11

If 40 is increased to 56, what is the percent of change?

Mathematics
1 answer:
weqwewe [10]3 years ago
7 0
It's a 40 percent increase
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A box contains only black and white chips. There are 8 black chips and 6 white chips. How many white chips must be removed so th
3241004551 [841]

There are 8 black chips and 6 white chips, 14 chips in total. In this situation the probability to pick a black chip is 8/14=4/7.

When one white chip was removed, then only 5 white chips left and the total number of chips became 13. In this situation the probability to pick a black chip is 8/14=4/7.

When second white chip was removed, then ther left 4 white chips and the total number of chips became 12. Now the probability to pick a black chip is 8/12=2/3 as needed.

Answer: Must be removed 2 white chips. Correct choice is B.


5 0
3 years ago
43046721 as a single power of 9
Levart [38]

Answer:

9^8

Step-by-step explanation:

9^8=43046721

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4 0
2 years ago
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They reject if the pie is more than 3.2oz from 28oz.

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The scale shows zero if its 28oz.

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D.   Scale reads 28oz which means more than 28oz, So rejected.

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3 years ago
Simplify the expression. Write the answer using scientific notation. 0.7(3.6x10^-2)
kobusy [5.1K]
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