A piece of rope is cut into three lengths in the ratio 7:2:5 if the smallest length is 1.48m find the length of the longest piece of rope and the length of the original rope

5.18, 10.36

Step-by-step explanation:

the smallest one is 2 parts

1.48/2 so each part is 0.74m

the longest piece of rope is 7 parts

0.74*7=5.18m

the rope total is 14 parts (7+2+5)

14*0.74=10.36m

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36

the train arrives at 20: 27 hope i