I think the ratio is for for every 4 packs it cost 10 dollars so in all it would cost 30 dollars
Answer: 6 students
What we know:
Students: 24
Students who play checkers:
Students who also play sudoku: of the
24 ÷ 3 = 8, so 8 × 2 = 16 (students who play checkers)
× 2 =
So the answer is,
6 students play both checkers and sudoku
9) 0.31
10) (7x10^6)-(3x10^3)
7000000-3000=6997000
6.997x10^6
Hope this helps :)