Answer:
z=12
Step-by-step explanation:
It is given that x varies jointly as y and z, it means
where, k is the constant of proportionality.
It is given that x=8 when y=4 and z=9
Divide both sides by 36.
The value of k is 2/9.
We need to find the value of z when x=16 and y=6.
Substitute x=16 and y=6 in the above equation.
Multiply both sides by 3.
Divide both sides by 4.
Therefore, the value of z is 12.
Answer:
Approximately 2 days.
Step-by-step explanation:
The frog can only jump 3 lily pads each day.
24 hours = 1 day
= 8 hours
Thus, it would take the frog 8 hours to cover a lily pad.
To get to the edge of the pond, the frog would jump through 6.5 lily pads (since he is at the middle of a lily pad at the center of the pond).
So that;
Total time required to get to the edge of the pond can be determined by;
6.5 × 8 hours = 52 hours
Number of days to get to the edge of the pond =
= 2.2
It would take him approximately 2 days to get to the edge of the pond.