Answer:
572000
Step-by-step explanation:
The population reduced by 12%, so (100-12)=88% is remaining.
So, 88% of 650000= 0.88 x 650000
= 572000
Answer: 4 V
Step-by-step explanation:
The formula for electrical power
is:

Where:
is the water heater electrical power
is he water heater voltage
is the electrical resistance
Isolating
:


Hence:

Amount of chocolate milk Ana drinks =
liter
Total amount of chocolate milk in refrigerator =
liter
We have to determine the total number of glasses she will pour
liter of milk from
liter of milk.
Total number of glasses will be determined by dividing the total amount of milk by the amount of milk required for one glass
Total number of glasses = 
= 
= 
= 5.6 glasses
So, 5.6 glasses will be poured from the given amount of chocolate milk.
let the number = x
x*80/100 = 55
x = 5500/80
x=68.75
After rounding off, it will remain 68.75