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1. If y varies inversely as x, if y= 36 when x=4, find y when x = 12​

Sagot :

Answer:

12

Step-by-step explanation:

step 2. Calculate

y = 36

x = 4 into y = k ÷ x

36 = k ÷ 4

k = 144

step 3. Find the function

y = 144

︎ ︎ ︎ ︎ ︎ ︎ ︎x

step 4. Calculate

Substitute x = 12 into y = 144

︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎x

Simplify

y = 144

︎ ︎ ︎ ︎ ︎ ︎ ︎12

y = 12

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