X/30=12 3/5 what is X

x=738

Step-by-step explanation: Let's solve your equation step-by-step.

x /30  =  123 /5

Step 1: Cross-multiply.

x /30  =  123/5

x*(5)=(123)*(30)

5x=3690

Step 2: Divide both sides by 5.

5x /5  =  3690 /5

x=738

(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

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5