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1 vote
Write a situation that can be represented by 2x + 6 > 20.

User Electra
by
4.2k points

2 Answers

5 votes

Answer:

= 2x > 20-6

= 2x > 14

= x > 7... then the answer includes the numbers greater than seven

User ArcX
by
4.7k points
3 votes

Hm, interesting inequality.

If you know that it slightly simplifies to
2x\gt14 then you could go about representing something in real life,

Buying shoes is always done in pairs, if u buy two pairs of shoes you bought 4 shoes. You can only ever buy an even number of shoes which is represented by
2x.

So you are asking yourself how many pairs you had to buy in order to have more than 14 shoes. The answer is of course, 7 pairs means exactly 14 shoes but since you need more the answer is 8 pairs. Represented by,


x\gt7=\{8,9,10,\dots,\aleph_0\}

assuming
x\in\mathbb{N}, which is appropriate since you cannot buy negative shoe or
0.43819 of a shoe pair.

However, if you cannot change the inequality at all, you can use the above paragraph but simply add, you have 3 pairs (6 shoes) of shoes that are indispensable and you want to know the minimum number of shoe pairs you need to buy so that you always have more than 20 shoes.

Notes


\aleph_0 is the number of natural numbers
\mathbb{N} there are.


\{\dots\} is explicit set notation, ie. which values concretely satisfy the inequality.

Hope this helps :)

User Hayman
by
4.0k points