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2 years ago

10

Write an equation that expresses the following relationship. w varies directly with u and inversely with d In your equation, use

k as the constant of proportionality.

1 answer:

Elena L [17]2 years ago

5 0

Step-by-step explanation:

solution.

if variable d increases then w reduces

w=k.u ×1/d

=ku/d

therefore w=k.u/d

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3 years ago

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3 years ago

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ch4aika [34]

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Step-by-step explanation:

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2 years ago

Read 2 more answers

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Genrish500 [490]

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2 years ago

Out of the 150 students at a summer camp 72 signed up for canoeing there were 23 students who signed up for trekking and 13 of t

Ivanshal [37]

Answer: Option 'A' is correct.

Step-by-step explanation:

Since we have given that

Total number of students at a summer camp (Universal set)= 150

Number of students who signed for canoeing (C) = 72

Number of students who signed for trekking (T)=23

Number of student who signed for both (T∩C)= 13

As we know the formula of "Sets ":

$n(T\cup C)=n(T)+n(C)-c(T\cap C)\\\\n(T\cup C)=72+23-13\\\\n(T\cup C)=82$

So, we need to find the number of students who signed up for neither canoeing nor trekking:

$n(T\cup C)'=n(U)-n(T\cup C)\\\\n(T\cup C)'=150-82\\\\n(T\cup C)'=68$

Percentage of students signed up for neither canoeing nor trekking is given by

$\frac{68}{150}\times 100\\\\=45.33\4\\\\=45\%$

Hence, Option 'A' is correct.

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3 years ago