Question

A student attempted to generate an equivalent expression using the distributive property, as shown below:

2(x + 5) = 2x + 5

What was the mistake made?


1. 2 was not multiplied by x

2. 2 was not multiplied by 5

3. Incorrect sign was used for the first term

4. Incorrect sign was used for the second term

Answer 1

Step-by-step explanation:

ratio of his age to his son's age is 6:1. Four years ago these

ratios were 11 : 14 and 11:1respectively. The ratio of the age of the grandfather to that of the grandson 12 years from

now will be:

as

Answer 2

2. 2 was not multiplied by 5
The answer should have been 2x+10