Math, asked by khosab30pcbqjs, 11 months ago

(d)
If y is directly proportional to 1/xand x = 2 when y = 20, what is the value of
x when y = 1.25? ​

Answers

Answered by KhanLuqman
16

Answer:

x = 32 when y = 1.25

Step-by-step explanation:

As stated above

y \alpha  \frac{1}{x}

replacing the proportionality sign with equality and a constant

y  =  \frac{k}{x}

putting the values of x and y to find k

y \times x = k

thus

k = 2 \times 20 = 40

NOW when y = 1.25

x =  \frac{k}{y}  =  \frac{40}{1.25 }  = 32

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