The application of mathematical ratio in sixth grade
1:60 ÷12× (12-5) = 5× 7 = 35 (person) 2: (156-65) ÷ (4+3) = 9/. 13×3=39 (box)-pear 3: 72× 2 ÷ (5+7) =144 ÷12 =12 (person)12. 12×7=84 (person)-B4: 250 ÷ (1+2+7) = 250 ÷10 = 25 (kg) 25× 2 = 50 (kg)-Great white powder. Its angle is 90, so it is a right triangle 6: 560 ÷ 2 ÷ (4+3) = 280 ÷ 7 = 40 (m) 40× 4 =160 (m)-length, 40× 3 =/kloc-.