Respuesta :
1.
6 lb or pounds of yarn makes = 32 yards
So, 55 lb of yarn will make = [tex]\frac{32}{6}\times55[/tex] = 293.33 yards
Hence, 293.33 yards of knitted material is made from 55 lb of yarn.
2.
Convert 67.5 cu ft to cubic yards.
1 cu ft = 0.037 cu yards
67.5 cu ft = [tex]0.037\times67.5[/tex] = 2.497 cubic yards
3.
[tex]25+30+18+35=108[/tex] minutes
Converting into hours we get
[tex]\frac{108}{60}=1.8[/tex] hours
4.
The total speed of both the boys is = 45 mph+55 mph= 100 mph
The distance will be shortened by 100 miles per hour.
The given distance is 210 miles.
Then the time when they meet should be:
time=distance/total velocity
=210m/100mph= 2.1 hours
5.
Weight of the package in pounds = 5.4
1 pound = 0.453 kg
5.4 pounds = [tex]0.453\times5.4=2.446[/tex] kg
Hence the weight of the package is 2.446 kg.
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