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Ganezh [65]
3 years ago
8

If 3/x= 4/5, then what is the value of x? A. 12/5 B. 1/5 C. 15/4 D. 19/5 E.3

Mathematics
1 answer:
gladu [14]3 years ago
7 0

Answer:

C

Step-by-step explanation:

\frac{3}{x}=\frac{4}{5}\\

Cross multiply,

3*5 = 4*x

15 = 4x

4x = 15            {Divide both sides by 4}

x=\frac{15}{4}\\\\

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It is C because members in the set C can be found in the universal set (U)

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3 years ago
If 2x - 3 = 3x - 7, what is the value of x?
icang [17]

Answer:

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Step-by-step explanation:

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Rudik [331]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
F(x)=x^3 −9x <br> What is the average rate of change of over the interval [1,6]?
Inga [223]

Answer:

34

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

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Alex73 [517]
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