Answer:
25x + 5y + z cents
Step-by-step explanation:
1 quarter is worth 25 cents.
1 nickel is worth 5 cents.
1 penny is worth 1 cent.
Therefore, x quarters, y nickels and x pennies will be worth:
(x * 25) + (y * 5) + (z * 1)
= 25x + 5y + z cents
Solved it out for you & made it as simple as i could
We let
x be the time it took John to get to his uncle's
y be the time it took John to get back from his Uncle's
So,
x + y = 12
And making use of the given velocities
20x = 30y
x = 3/2 y
Substituting to the first equation
3/2 y + y = 12
y = 4.8 h
Substituting to either of the equations
x = 7.2 h
Answer:
A
Step-by-step explanation:
