Question

The sum of a number and its half is thirty. Find the number​

Answer 1

x+0.5x=30

1.5x=30

x=20

Answer 2

20

Explanation:

The sum of a number and its half is thirty. Find the number​:

the formula would be:

1.5x = 30

divide both sides by 1.5:

1.5x/1.5 = 30/1.5

x = 20

check:

20 = 20

1/2 of 20 = 10

20 + 10 = 30