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varies directly as the cube root of . If =48 and =27, find when x=729.

Sagot :

Answer:

Y = 90 when x = 27

Step-by-step explanation:

we are told the Y varies directly as the cube root of x

Thus

Y

=

k

3

x

For some

k

Q

We are also told that

Y

=

30

when

x

=

1

30

=

k

3

1

k

=

30

Hence:

Y

=

30

3

27

when

x

=

27

Y

=

30

×

3

=

90