The 15 year olds, it turne out to be .533 and the oler ones are .5833
Let x-golf ball
x+9=22
X=22-9=13
She start with 13 golf balls
Answer:
<em>30 min</em>
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Step-by-step explanation:
The tank can be filled in 15 min, this means that in one min, 1/15 of the tank can be filled.
The tank can be emptied in 10 min, this means that in one min, 1/10 of the tank can be emptied.
the outflow rate - the inflow rate = rate of emptying the tank
1/10 - 1/15 = 1/x
where x is the time it will take to empty the tank
solving, we'll have
1/30 = 1/x
the reciprocal of the equation gives
x = <em>30 min</em>
Answer:
20 hrs
Step-by-step explanation:
distance/velocity
1000/50
