Question

Carol collected aluminum cans for one week. She collected 10 cans each day Monday through Thursday. On Friday morning, Carol collected 18 cans. She wrote the expression 4(10)+18, Write an expression that is equivalent.

Answer 1

As given in the question,

Number of cans collected daily from Monday to Thursday = 10

which gives 4 days so total collected cans in 4 days = 40

Number of cans collected on Friday = 18

So, total cans collected from Monday to Friday = 40 + 18 = 58 cans

Now, the expression written by Carol is = 4(10)+18

Now solving this also we get

40 + 18 = 58 cans.

Answer 2

You can distribute the 4, and you get:
$4(10) +18 = 40+18$

Then add to get your answer:
$40+18 = 58$