Need help and quick 1. -6w 45 3. n/-3 -4 4. k/6 4 5. Carlos needs to buy at least 7 pairs of socks. They come in packages of 3 pairs. What is the fewst number of the packages he should buy?

Question

Need help and quick 
1. -6w < 84
2. 5m > 45 
3. n/-3 > -4
4. k/6 > 4
5. 
Carlos needs to buy at least 7 pairs of socks. They come in packages of 3 pairs. What is the fewst number of the packages he should buy?

ttp · Answer

Question 1. w>-14

ttp · Answer

Question 2: m>9

aakashsudhakar · Answer

The first four involve simple manipulation of inequalities to isolate the variables expressed. 1. -6w < 84 -w < 14 Be very careful with this next step. It's good to keep in mind that whenever you're manipulating inequalities, whenever you have to divide or multiply both sides by a negative value, you HAVE to flip the inequality. This will result in... w > -14 2. 5m > 45 m > 9 3. n/-3 > -4 n < 12 4. k/6 > 4 k > 24 5. Since Carlos needs AT LEAST 7 pairs, he needs to buy the least number of whole packages in order to get AT LEAST 7. Since it's theoretically impossible to buy fractions of packages, we'd need to solve for the least amount of packages needed to get at least 7 pairs. Since each package stores 3 pairs, use simple multiplication to find that you'd need at least 3 packages to have at least 7 pairs of socks (with two pairs extra, admittedly).

ttp · Answer

Well it llooks like @AakashSudhakar  got it before me

anonymous · Answer

lol well thanks for helping and you too @AakashSudhakar

aakashsudhakar · Answer

Anytime.