I'm not 100% sure because it is rare to ask about adding scientific notation but I would answer it like this:
8.4x10^8 +3.7x10^9=
12.1 x 10^17
final answer
Answer:
Step-by-step explanation:
we know that
The number of kWh of energy that the model house generate per year is given by the sum of kWh of energy generates by the windmills multiplied by the number of windmills, plus the kWh of energy generates by the solar panels multiplied by the number of solar panels.
so
For 10 year
Multiply the expression above by 10
Apply distributive property
Answer:
134
Step-by-step explanation:
to find how many gifts it can make, you must find how many times 34 can go into 4580. do this by deciding 4580 by 34.
4580/34=134.7
Since you can't make less than a whole gift you must round it down to 134
The equation used for this is
=
if you knew n then we could solve this equation
First lets write down our starting conditions:
we have 22 gallons and it has 16% of ammonia
16% of 22 gallons is
A = 16/100*22 = 3,52 gallons
Now since only watter is evaporating that means that in second scenario after some watter evaporated there is still 3,52 gallons of ammonia. But now those 3,52 gallons of ammonia represent 24% of total mixture. So now we go other way.
24 % is 3,52 gallons
100% is x gallons
x = 100/24*3,52 = 14.667 gallons
That means that he has to evaporate
22 - 14.6667 = 7,333 gallons of water.
