Question

A company did a quality check on all the packs of trail mix it manufactured. Each pack of trail mix is targeted to weigh 9.25 oz. A pack must weigh within 0.23 oz of the target weight to be accepted. What is the range of rejected masses, x, for the manufactured trail mix?

x < 9.02 or x > 9.48 because |x - 0.23| + 9.25 > 0

x < 9.25 or x > 9.48 because |x - 9.25| > 0.23

x < 9.25 or x > 9.48 because |x - 0.23| + 9.25 > 0

x < 9.02 or x > 9.48 because |x - 9.25| > 0.23

Answer 1

@jigglypuff314 @phi @ganeshie8

Answer 2

so it must be within
9.25 - 0.23 = ?
ans 9.25 + 0.23 = ?

Answer 3

9.25 - 0.23 = 9.02
9.25 + 0.23 = 9.48

Answer 4

yes :)
then try solving the absolute values
do you know how to do that?

Answer 5

|x - 9.25|
|x - 0.23|

I don't really know how to, the text book did a terrible job of explaining... I kept reviewing and I still don't understand.

Answer 6

it's alright :)

when given |a - b| > c it can be separated into
a - b > c and a - b < -c
do you understand it like that? or would you like for my to give an example? :)

Answer 7

Um, i think i get it, im thinking the answer is B but i am not sure,

Answer 8

close, you're correct on the absolute values parts
but what were the numbers I had you get?

Answer 9

9.02 and 9.48

Answer 10

Ahh wait I think I get it! It's D right??

Answer 11

yep :)

Answer 12

Thanks! Can you help with a couple more?

Answer 13

sure :)
post them as separate question posts though :P

Answer 14

Okay, thank you so much

Answer 15

Choose the correct description of the graph of the compound inequality

3x + 1 > 10 and 4x less than or greater to 20.

A number line with an open circle on 3, a closed circle on 5, and shading in between

A number line with an open circle on 3, shading to the left, and a closed circle on 5, shading to the right

A number line with a closed circle on 3, shading to the left, and an open circle on 5, and shading to the right

A number line with a closed circle on 3, an open circle on 5, and shading in between

Answer 16

solve for x from 3x + 1 > 10 can you do that?
it's just like any other equation :)

Answer 17

x>3

Answer 18

correct :)
then
4x ≤ 20 solve for x

Answer 19

x ≤ 5

Answer 20

correct :) good job!
now, do you know how to graph those two on the number line?

Answer 21

I'm going to go with A and yes I do

Answer 22

A is correct :)

Answer 23

thanks! :) I have just two more, I might bother you again later on today though, i like math yet I suck at it, lol

Answer 24

Jess observed that 60% of the people at a mall on a particular day shopped for clothes. If 2,500 people at the mall did not shop for clothes that day, the number of people who shopped for clothes that day was ______. (only put numeric values, no other symbols)

Answer 25

100% - 60% = 40%
40% = 2500
if x = total
0.4 x = 2500 solve for x
then multiply x by 0.6

Answer 26

x = 6250

6250 * 0.6 = 3750

Answer 27

correct :)

Answer 28

okay, is that it for this question?

Answer 29

I think so :P

Answer 30

okay, i have one more, one minute

Answer 31

The equation below shows the area of a trapezoid, A, with a height of 9 cm, and one base 35 cm. :

A = 9 over 2(b + 35)

Which of the following formulas correctly solves for the other base, b?

b = 2A over 9 + 35

b = 2 multiplied by A over 9 - 35

b = 2 multiplied by A plus 35, all over 9

b = 2 multiplied by A minus 35, all over 9

Answer 32

to solve for b
multiply both sides by 2
divide both sides by 9
subtract 35 from both sides

Answer 33

so it's D?

Answer 34

I did divide by 9 before subtracting 35
so it won't be "all over 9"

Answer 35

Oh ok, so it will be B then

Answer 36

correct :)

Answer 37

okay, thank you so much, i wish i could give you five more medals, :)

Answer 38

lol no need ;) I have more than enough medals :P