"y varies directly as x" means y = kx
you do not know what k is yet, other than that it is some constant number.
Now plug in the given values, y=12 when x=4, in the equation
12 = 4k
=> k = 3
Now rewrite the equation with the k value you just found
y = 3k
Substitute 18 in place of x
y = 3(18)
y = 54
Answer:
2 o'clock
Step-by-step explanation:
Their 'closing speed' is 60 - 50 = 10 km/hr
they have 20 km between them
at closing speed this will take 20 km / 10 km/hr = 2 hours for the cars to meet....this would be at 14:00 or 2 oclock
14/19 if you add the amount of nickels and dimes together and then for the denominator just add all of the coins together.
The answer is
3 x - y + 2 = 0
Hope this helps :)
Answer:
75 computers
Step-by-step explanation:
R 32500 / R 500= 65 sold
65 +10= 75 computers originally
