Question

Question shown in picture

Answer 1

answer = answer

Explanation:

hence proved by your teacher

Answer 2

y=6/7

Explanation:

Convert mixed numbers into improper fractions: (10/7)/3=5/9/y

Simplify 5/9/y=5y/9

Apply fraction cross: if a/b=c/d then a*d=b*c: 10/7*9=3*5y

Simplify: 90/7=15y

Multiply both sides by 7: 90/7*7=15y*7

Switch sides: 105y=90

Divide both sides by 105: 105y/105=90/105

Simplify y=6/7