Question

Which is the solution to the equation 2.6a + 18.4 = 28.8 round the nearest tenth if necessary. 1.4, 4, 18.2, 27,

Answer 1

Four! Answer has to be 20 characters long

Answer 2

The solution is 4.

Explanation:

Given expression is,

`2.6a+18.4=28.8`

Subtracting 18.4 on both sides,

`2.6a+18.4-18.4=28.8-18.4`

`2.6a=10.4`

Dividing 2.6 on both sides,

`a=(10.4)/(2.6)=4`

Since for a = 4,

`2.6a+18.4=28.8` is satisfied.

Hence, the solution of the given expression is 4.