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spazzinchicago
18.02.2021 •
Mathematics
If (y + 1) varies directly as square root of x and y =14 when x = 27, find the value of y when x = 64 without finding the variation constant.
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Ответ:
22.1 or 22
Step-by-step explanation:
Y + 1 varies√x
Y + 1 = K√x ( k is costant)
so we solve for K
given: 14 + 1 = K√27
15 = K√27
divide both sides by √27
15/√27 = K
to find the value of y
y + 1 = 15/√27 (8) : substitute K for 15/√27
Y + 1 = 120/√27
i.e Y = 120/√27 - 1
Y = 23.1 - 1
Y = 22.1 or 22
Ответ:
Flat fee of 20 dollars with 5 dollaers every hour=
20+h5
Step-by-step explanation: