4 times as much as the sum of 1/5 and 2/3 as an expression

3.467

Step-by-step explanation:

1\5+2\3=13\15

13\15*4=3.467

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

(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