Question

The sum of nine and six-tenths and a number is thirteen and two-tenths. What is the number?

1.375
3.6
22.8
126.72

Answer 1

its B

Explanation:

Answer 2

So the first thing we need to do is set up an equation (using x to represent the number). Then, we'll solve it to get the answer.

Step 1: Translate the word problem into an equation

Word problem: The sum of nine and six-tenths and a number is thirteen and two-tenths.

Equation:
`9 (6)/(10)` + x =
`13 (2)/(10)`

Step 2: Isolate x by subtracting
`9 (6)/(10)` from each side

`9 (6)/(10)` + x -
`9 (6)/(10)` =
`13 (2)/(10)` -
`9 (6)/(10)`

Step 3: The numbers on the left cancel out, leaving x alone

x =
`3 (6)/(10)`

Step 4: Convert the answer to decimals

x = 3.6