Question

Please help, I will medal and fan

4. 3+d<3-d
5. The sum of two consecutive integers is at least 46. What is the least possible pair of integers?
21 and 23
23 and 24
22 and 23
24 and 25

Answer 1

3+d < 3-d

Add d on both sides

Tell me what you get :)

Answer 2

Basically think of the inequality as an equal sign :)

Answer 3

d>6?

Answer 4

Well let me see... mhmm...

3 + d < 3 - d

3 + 2d < 3

Subtract 3 on both sides

2d < 0

Divide by 2 on both sides

d < 0

Answer 5

So that's wrong :P

Answer 6

oh, ok I see what you did.

Answer 7

can you help me with number 5?

Answer 8

sure :)

Answer 9

Consecutive integers means like back to back, so like x and (x + 1)

Answer 10

and the sum of the two consecutive integers is at least 46

so...

x + x + 1 \(\ge\) 46

2x + 1 \(\ge\) 46

Solve for x :)

Answer 11

2x + 47
dividing 2x on both sides would give me 23.5

Answer 12

So that means that both numbers over 2 = 23.5

Answer 13

That would mean if one number is 23 and the other is 24, (23+24)/2 = 23.5

Answer 14

so b

Answer 15

yes

Answer 16

Thanks so much! here is you medal and fan

Answer 17

No problem (: