Answer:
11, 41, and 43
Step-by-step explanation:
those numbers' only factors are itself and one
The multiplier is 1 + growth percentage or 1- decrease percentage rage.
1) 1 + 5% = 1.05
2) 1-12% = 0.88
3) 1-0.85% = 0.9915
4) 1 + 200% = 3
Answer:
130
Step-by-step explanation:
If you add fifty to eighty then you get 130, to double check just subtract 50 from 130 and then you get 80.
Answer:
<em>30 min</em>
<em></em>
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>
