anonymous
  • anonymous
Can anyone help me? I have no clue what it is.
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Eric reported that Joan won her first match in the chess tournament, but she won fewer than 8 matches altogether. Eric wrote the inequality m < 8 to represent the possible number of matches Joan won. Which numbers satisfy the inequality but make no sense in this situation? Choose all answers that are correct. –1 –7 4 0
anonymous
  • anonymous
anonymous
  • anonymous

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anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
Typically i would have some clue and would be able to make an assumption but i don't know what to do.
mathstudent55
  • mathstudent55
Since she won her first match in the tournament, how many matches do you know for sure she won?
anonymous
  • anonymous
none, since she just won her first
mathstudent55
  • mathstudent55
Isn't the first one, one match anyway. She for sure won 1 match.
anonymous
  • anonymous
it says -1
mathstudent55
  • mathstudent55
You need to read the problem, not the choices.
anonymous
  • anonymous
the third choice can be an option
mathstudent55
  • mathstudent55
After you understand the problem and you know what the answer is, then you check the choices and pick out the ones that make sense.
mathstudent55
  • mathstudent55
Correct.
anonymous
  • anonymous
i have to choose all that apply
mathstudent55
  • mathstudent55
She won for sure 1. Overall, she won less than 8. That means she may have won 1, 2, 3, 4, 5, 6, or 7, since all those numbers are less than 8.
anonymous
  • anonymous
it says in the question which numbers satisfy the inequality but make no sense in this situation?
anonymous
  • anonymous
that's what got me clueless
mathstudent55
  • mathstudent55
That means all numbers that can answer this problem are 1, 2, 3, 4, 5, 6, and 7. All those are possible answers. 0 is not a possible answer because we know she won the first one. She definitely won 1.
mathstudent55
  • mathstudent55
The inequality is m < 8, right? What values of m will make the inequality true?
anonymous
  • anonymous
so it's just 4 because the other answer choices are negative
mathstudent55
  • mathstudent55
Any number that is lees than 8 makes the inequality true, correct?
anonymous
  • anonymous
yea
anonymous
  • anonymous
so it's only 4
mathstudent55
  • mathstudent55
Right. -7 makes the inequality true, but it makes no sense to say she won -7 matches. The same goes for -1. -1 makes the inequality true, but makes no sense.
mathstudent55
  • mathstudent55
0 makes the inequality true, but in this case the reason it can't be used is not that it makes no sense like -1 or -7. It is possible for a person to win no matches. In this case we know she won 1 for sure, so 0 is simply not true, so even though 0 satisfies the inequality, it is not true in this situation.
anonymous
  • anonymous
but then the answers would be -1, -7, and 0 because it says which numbers satisfy the inequality but make NO SENSE in this situation.
mathstudent55
  • mathstudent55
You are correct, the only correct answer is 4.
mathstudent55
  • mathstudent55
No. 0, -1, -7 all satisfy the inequality. They don't make sense in this situation for 2 different reasons. For -1 and -7, winning a negative number of matches makes no sense. It never makes sense. For 0, we know that makes no sense in this specific situation because we know she won 1 match. Had we not been told that she definitely won 1 match, 0 could have been an answer.
anonymous
  • anonymous
i just put i the results and it says it was - 1, -7, and 0 i think it was because it was asking for choices that made the inequality true, but made no sense. 4 supported the inequality, and made sense, the question asked for choices that supported it, but made no sense in the situation
phi
  • phi
yes, it was asking for the "goofy" numbers, which are -1, -7 and 0
anonymous
  • anonymous
i still thank @mathstudent55 for taking the time in my question though
mathstudent55
  • mathstudent55
@itsthatguy You are absolutely correct. The question was which numbers are not good, not which numbers are good. By the time I got to the end of the problem, I forgot what the question was! :-)
anonymous
  • anonymous
It's ok, i still thank you, because even though you weren't going for the other answers, you actually helped me, mentioning which choices didn't make sense, and so that helped me

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