45-21=24 neutrons :)
As the generally accepted mass of an electron is 0. So, to find the mass of neutrons, minus the protons from the total mass.
First you have to find the slope of each line to find out if they are parallel.
8 - 4 = 4
3 - 2 = 1
The slope of PQ is 4
-5 - -1 = -4
-5 - -2 = -3
The slope of RS is 4/3
The slopes aren't equal so the lines aren't parallel.
Hope this helps!!! :)
Answer:
1) 2(6-8x)
2) 4(3-4x)
Step-by-step explanation:
First total number of meters = 11 meters.
First number of seconds = 4 seconds.
Second total number of meters = 13 meters.
Second number of seconds = 12 seconds.
Speed in unit rate = 
Plugging values in the formula.
Speed in unit rate = 
= 
On dividing 2 by 8 , we get 0.25.
Therefore, speed is 0.25 meter per second.
Answer:
1 day
Step-by-step explanation:
i don't know hot to explain it, but technically i multiplied 1.8 time 60 (because there is 60 minutes in an hour, which will equal 108. now i multiplied 108 times 24 to see how many pages he can read in a day and it gave me 2592 and he only has to read 300 pages. So technically he can read 8 or more books of 300 pages in a day.
