Dan and David win some money and share it in the ratio 2:1. Dan gets £42 more than David. How much did they get altogether?

£126

Step-by-step explanation:

Ratio is 2:1 so the difference between the amount of money will be "1".  This is equal to £42 so 2 x 42 is 84 and 1 x 42 is 42, add them together and the answer is £126.  

the y will be in still but your answer will be y x 3

step-by-step explanation:

jk: )

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47