8/7 of 640 = 560 (yuan)
Kangaroo 1 6 hour runs 8 kilometers. According to this calculation, how many hours does it take to run 36 kilometers?
65438+6/0 is wrong?
36÷8 x? 6 = in 1 (just correct the score calculation)
Uncle Wang plans to grow cucumbers and tomatoes in a 640-square-meter plastic greenhouse. The planting area of cucumber is 3/2 of that of tomato, and how many square meters of two kinds of vegetables are planted.
The tomato area is 640x2/(2+3)=256 (square meters).
Cucumber area 640x3/(2+3)=284 (m2)