A. q>11
B. q>1/8
C. q>88
D. q>8
2006-09-12 09:37:02 · 6 answers · asked by Ashley B 1 in Science & Mathematics ➔ Mathematics
ah am too late, i wont have chance to get top answer, but i dont give up.
It's our inequality
3q+11+8q>99
3q+8q > 99 - 11
11 q > 88
q > (88/11)
q> 8
the correct answer is Part D ; q>8
Thats all.
Good Luck.
2006-09-12 10:39:09 · answer #1 · answered by sweetie 5 · 0⤊ 0⤋
Let's do it in steps.
3q+11+8q>99
11q + 11 > 99 (combine 8q and 3q)
11q > 88 (subtract 11)
q > 8 (divide by +11. If we divided by a negative we'd need to change the sign)
I hope this helped you understand the concept as well as the answer to this particular problem. Send on another if it didn't!
2006-09-12 09:40:42 · answer #2 · answered by J G 4 · 0⤊ 0⤋
Just do it like a normal equation. You only have to watch out if you are multiplying by a negative number, then you'd need to switch the direction of the inequality.
Original equation:
3q + 11 + 8q > 99
Group like terms:
11q + 11 > 99
Subtract 11 from both sides:
11q > 88
Divide by 11 (which is positive, so no change to the inequality):
q > 8
It's also a good idea to try a couple numbers at the boundary (7.9, 8.0, 8.0) to see if the inequality is correct:
7.9 and 8.0 shouldn't satisfy the equation, but 8.1 will.
D. q > 8
2006-09-12 09:39:27 · answer #3 · answered by Puzzling 7 · 0⤊ 0⤋
3q+8q +11>99
11q+11>99
11q>88
q>8
Hence correct answer is D
2006-09-12 09:52:48 · answer #4 · answered by curious 4 · 0⤊ 0⤋
D. q>8
subtract 11 from both sides. Then 11q>88 then divide 11 on both sides.
2006-09-12 09:42:21 · answer #5 · answered by July 1 · 0⤊ 0⤋
The answer is q>8 (answer D)
2006-09-12 09:41:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋