Question

Each day, Viktor practices piano for x minutes and practices violin for 30 minutes.

To find how many minutes he will spend practicing instruments over 5 days, Viktor calculates:

x + 30 + x + 30 + x + 30 + x + 30 + x + 30

What is another way Viktor can calculate how many minutes he will practice in total over the 5 days?

Drag and drop the equivalent expression in the box.

5x + 30

x + 150

5 (x +30)

x + 30

Answer 1

So first, he could reorder everything, into:

x + x + x + x + x + 30 + 30 + 30 + 30 + 30

And then if you add all the xs and 30s up,

5x + 150.

So therefore we now know it isn't the first, second, or third choices because those aren't remotely close.

The third one, however, is the correct choice, because:

5(x+30), if you use the distributive property, equals 5x + 150.

Answer 2

5 (x + 30) is your answer

you will distribute the 5 to both x and 30, as there are 5 thirty's and 5 x's

hope this helps

May Joan of Arc give you good tidings lol*