# math

posted by Es

I asked sue a question yesterday and don't understand the answer can you explain?
Here what it was
I think this question has a typo because none of the multiple choice answers fit.

The question is which of the following values is in the solution set of inequality 8-7x<-6?
A) -3 B)-2 C)2 D)-6

A if you plug in -3 you get
29<-6 no
B) 8+14<-6 no
c) 8-14<-6 so -6<-6 no
D) 8+42<-6 no
Did I do something wrong or are there no correct answers?
Thank you

•math - Ms. Sue, Thursday, December 27, 2012 at 6:44pm
8-7x<-6

-7x < -6 -8

-7x < -14

x = 2

SO WHEN SUE WROTE X=2 shouldn't it be
WHEN YOU SOLVE IT IS X<2
Then when you check it
8-7x<-6
8-7(2)
8-14<-6
THANKS

1. drwls

X= 2 leads to -6 on both sides, so "2 is not in the solution set. Neither are the other choices.

You are correct.
C only works if < is replaced by </

2. Reiny

let's just solve it ....

8 - 7x < -6
-7x < -14
divide by -7, remember that when we divide by a negative, the inequality sign has to be reversed, so

x > 2

obviously , only positives , so all those negatives can be ruled out

x = 2 does not satisfy x > 2
so there is no answer match-up in the given choices

Look again a the question
Is it it 8 - 7x ≥ -6 ?

if so, then x = 2 would be a solution.

3. Es

It does not say xgreater than and equal to , so I believe the question is a misprint.
Thank you

4. Random Guy

good grief You are feisty and sarcastic

5. Random Guy

Since when was grief good.
Grief:deep sorrow, especially that caused by someone's death.
look it up yourself!!! Bucko

6. stupidity

same to you and many more

## Similar Questions

1. ### English for john browm

Let me give you something on "multiple-choice" items that may help you to guess better. Many teachers prepare multiple-choice tests because they are easy to mark and offer the student the advantage of actually seeing what the correct …
2. ### calculus

this question is a multiple choice question, however i don't know how to start or finish it. The solution set of |3x+2|<1 contains... i need help trying to figure out how to solve for x. other then that i believe i could answer …
3. ### math

you take a three-question multiple-choice test.each question has four choices.you don't know any of the answers. what is the experimental probability that you will guess exactly two out of three correctly please help me i am confused
4. ### Statistics

On a very short quiz, there is one multiple choice question with 5 possible choices (a, b, c, d, e) and one true or false question. Assume you are taking the quiz but do not have any idea what the correct answer is to either question. …
5. ### Math

a 10 question multiple choice test has 4 possible answer for each question. A student selects at least 6 correct answers. Find probability of this event: (multiple choice) A) .118 B) .995 C) .068 D) .571
6. ### prealgbra

solve by simulating the problem.you have a 5 -question multiple -choice test. each question has four chices. you don't know any of the answers. what is the experimental probility that you will guess exactly three out of five question …
7. ### math

I think this question has a typo because none of the multiple choice answers fit. The question is which of the following values is in the solution set of inequality 8-7x<-6?
8. ### Statistical concept 68-95-99.7

1. A student taking a midterm exam in Ancient History comes to two questions pertaining to a lecture that he missed, and so he decides to take a random guess on both questions. One question is true-false and the other is multiple choice …
9. ### Stat HW for.

1. A student taking a midterm exam in Ancient History comes to two questions pertaining to a lecture that he missed, and so he decides to take a random guess on both questions. One question is true-false and the other is multiple choice …
10. ### English

Which of the following is a good test-taking strategy for multiple-choice questions?

More Similar Questions