fr996060
29.01.2020 •
Mathematics
If 32 yd of knitted material is made from 6 lb of yarn, how many yards will be made from 55 lb?
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Ответ:
1 lb makes 32⁄6 yd (unit yardage).
55 × 32⁄6 = 2931⁄3 yd
1 cu yd = 27 cu ft
67.5 cu ft = 67.5⁄27 = 2.5 cu yd
25 + 30 + 18 + 35 = 108 min
108 ÷ 60 = 1 hr and 48 min
Time = Distance ÷ Rate
210 ÷ 100 = 2.1 hr, or 2 hr and 6 min
5.4 lb × 0.4536 = 2.45 kg
Ответ:
2y = -3x + 4
Divide by 2
Solution: y = -3/2x + 2
x + 2y = -4
2y = -x - 4
Divide by 2
Solution: y = -1/2x - 2