Http://mathsfirst.massey.ac.nz/Algebra/SystemsofLinEq/EMeth.htm this website explains it well
The greatest common factor of 22 and 99 would be 11. :)
First find out how much money she spent by doing 80 (original amount) - 33.56 (amount after spending): $46.44
Now she spent 46.44 dollars and each pound is 7.74:
46.44 / 7.74 = 6
She bought 6 lbs
Hey!
Simi bought study table = $ 9000
It means S.P = $9000
Profit = 20%
We know,
S.P = \frac{100+profit%}{100} \times C.P\\ S.P = \frac{100+20}{100} \times 9000\\ S.P = \frac{120}{100} \times 9000 \\ S.P = 10800
Now,
Profit = S.P - C.P
= 10800-9000
= $ 1800
Answer:
the answer would be 4 students
Step-by-step explanation:
