Question

Which expressions are equivalent to (5⋅x)⋅3 ? Drag and drop the equivalent expressions into the box.

3⋅(5⋅x)
5⋅3+x⋅3
5⋅(x⋅3)
15x
5⋅3⋅x⋅3

Answer 1

B

Explanation:

Answer 2

Greetings!

Answer:

3⋅(5⋅x)

5⋅(x⋅3)

15x

Explanation:

As the values are inside the brackets, it does not matter what side the (x3) is on, so 3⋅(5⋅x) is equivalent.

Multiplying the contents of the brackets in the third one (x * 3) by 5 gives the same value as 3 * (x * 5) so 5⋅(x⋅3) is also equivalent.

On multiplying the brackets out:

5 * x = 5x

5x * 3 = 15x

So 15x is also equivalent.

Hope this helps!