2 years ago

What is 5 feet 6 inches in inches?

Mathematics

1 answer:

gavmur [86]2 years ago

4 0

5 feet 6 inches is equal to 66 inches

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A total of 1 232 students have taken a course in Spanish, 879 have taken a course in French, and 114 have taken a course in Russ

ElenaW [278]

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$n(S\cap F \cap R)=7$

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The Universal Set, n(U)=2092

$n(S)=1232\\n(F)=879\\n(R)=114$

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Let the number who take all three subjects, $n(S\cap F \cap R)=x$

Note that in the Venn Diagram, we have subtracted $n(S\cap F \cap R)=x$ from each of the intersection of two sets.

The next step is to determine the number of students who study only each of the courses.

$n(S\:only)=1232-[103-x+x+23-x]=1106+x\\n(F\: only)=879-[103-x+x+14-x]=762+x\\n(R\:only)=114-[23-x+x+14-x]=77+x$

These values are substituted in the second Venn diagram

Adding up all the values

2092=[1106+x]+[103-x]+x+[23-x]+[762+x]+[14-x]+[77+x]

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2 years ago

If 28% of a sum is $100.80, what is the sum?

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28% of x = 100.80
.28 × x = 100.80
.28x = 100.80
x = 100.80/.28
x = 360

Answer A

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