Answer:
F=121.61 gr,
Step-by-step explanation:
we see that it is a problem of proportion, so then if the total mass of the sample is the sum of M plus fluorine
the sample weighs 1.38gr M + 0.71gr F = 2.09, where M y F represent :
M=1.38*100/2.09 = 66.02% and
F=0.71*100/2.09 = 33.97%, also
in 358 gr. * 0.3397F = 121.61 gr F
We are told that a marathon is 26.2 miles long. There is a water station every 1 and 3/100 miles along the race route. We are supposed to write an expression that represents the total number of water stations.
Let x be total number of water stations.
First of all we will convert our mixed fraction into improper fraction.
The total number of water station in the marathon of 26.2 miles will be,
Therefore, will represent the total number of water stations.
There was 32 total pupils and 2 obtained a level 5, so you subtract 2 from 32 and get 30. Then you divide 30 by 5 because to give you the the number of students which got a level 4 which is 6. 6+2=8 32-8=24
Level 4; 6pupils
Level 3; 24
Level 5:2
19 round tables seating 8 at each table would Be 152 people total . If you place 2 forks at each setting you would multiply 152 times 2 for a total of 304 forks total
