Question

Which shows the correct solution of the equation 1/2 a + 2/3b = 50 when b=30

Answer 1

The correct solution of the equation 1/2 a + 2/3b = 50 when b=30 is a = 60

Solution:

Given equation is (1/2)a + (2/3) b = 50

And b = 30

Substituting given value of b is above equation we get

(1/2)a + (2/3) x 30  = 50

=> (1/2)a + 20 = 50

=> (1/2)a = 50 – 20 = 30

=> a = 30 x 2 = 60

Hence a = 60 and b = 30 is one solution of given equation  

Answer 2

Answer:

The correct solution of the equation 1/2 a + 2/3b = 50 when b=30 is a=60.

Step-by-step explanation:

The equation is 1/2 a + 2/3 b = 50.

According to the question b=30.

We need to find the correct solution of the equation 1/2 a + 2/3 b = 50 .

To find the value of a from the equation 1/2 a + 2/3 b = 50 , we need to replace the value of b by 30 .

1/2 a + 2/3 * 30 = 50.

or , a = 60 .

The correct solution of the equation 1/2 a + 2/3b = 50 when b=30 is a=60.

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