Chris gave nia 1/2 of his mini snickers bars. nia ate 1/2 of them and then gave the rest of her bars to miles. miles kept 8 and gave the last 10 bars to kayla. how many snickers bar did chris start with? how many snickers bars did nia eat?

 Alright so for this question, we gotta work backwards. What this means is that we have to start with Kayla and work it back to Chris. Here are the steps.

1) Kayla has 10 bars. Miles had 8.  10+8=18.

2) Since Nia ate 1/2 of those bars she had, we multiply 18 and 2. Because Nia gave Miles half of what she had, and Miles gave some to Kayla. 18 x 2 =36.

3) Work the same way as step 2. We multiply 36 by 2. You will get 72. And the answer is 72.

Hope this helps :)

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

john got lost so he didn't know what to do and it was crazy because he didn't except it

step-by-step explanation:

123123 step byt step