2 years ago

55 is 20% of what numeber

Mathematics

1 answer:

kolbaska11 [484]2 years ago

4 0

The answer is 275. hope it helps :)

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What is in simplest form? A. B. C. D.

alukav5142 [94]

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C. 8√3

Step-by-step explanation:

* = multiply or times

To find √192 in its simplest form we need to divide it by a square number like 64.

192/64 = 3

√192 = √64 * √3 = 8√3

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3 years ago

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Which graph has a rate of change equal to 1-3 in the interval between 0 and 3 on the x-axis

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3 years ago

A car traveled 133 miles in 4 3/4 hours. What was the cars average speed in miles per hour?

nirvana33 [79]

4 3/4 = 19/4

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3 years ago

Let the universal set, s, have 66 elements. a and b are subsets of s. set a contains 19 elements and set b contains 34 elements.

Otrada [13]

The cardinality of the union between two sets is given by

$N(A\cup B) = N(A) + N(B) - N(A \cap B)$

In fact, if an element is in both A and B, it is counted in both N(A) and N(B), so we're counting it twice. By subtracting the cardinality of the interserction, we're taking back one of these "extra-counted" element, and the count is correct. In your case, the numbers are

$N(A \cup B) = 19+34-10 = 43$

This means that the two sets cover, without repetitions, 43 of the 66 elements in the sets. So, there are

$66-43 = 23$

elements which are in neither A nor B

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3 years ago