Rachel multiplied each side of ≥x greater than or equal to 2 by 3. She wrote the result as ≤3 x less than or equal to 6 . Explain the error Rachel made.

Rachel's error is in the inequality sign

Step-by-step explanation:

Given

Required

Determine the error in Rachel's workings

From the question, we understand that both sides of the inequality were multiplied by 3

i.e.

This gives

Comparing this to Rachel's result:

We can conclude that Rachel's error is in the inequality sign.

The sign of an inequality will only change is it is being multiplied or divided by a negative number; otherwise, the sign remains unchanged

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.