If y varies directly as x and z and y=4 when x=6 and z=1 find y when x=7 and z=4

Step-by-step explanation:

We have been given that y varies directly as x and z.

We know that equation of two directly proportional quantities is in form , where, k is constant of proportionality.

Since y varies directly as x and z, so our equation would be

We are also told that , and . Let us find constant of proportionality as:

Now, we will solve for y by substituting , and

Therefore, .

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.