Question

1) Determine whether y = 0.6 is a solution of each question.
(a)5y = 2
(b)4.2 = 7y​

Answer 1

(a)

5y = 2

y = 2/5 = 0.4

so , y = 0.6 is not a solution of equation 5y = 2

(b)

4.2 = 7y

4.2/7 = y

y = 0.6

so , y = 0.6 is a solution of equation 4.2 = 7y

Answer 2

Answer:

y=0.6

5y=2

5(0.6)=2

3.0≠2

it is not a solution of 5y=2

y shoul be= 2/5

4.2=7(0.6)

4.2=4.2

y is a solution of 4.2=7y