Homework Help: 7th grade math help Ms. Sue

Posted by Delilah on Tuesday, December 18, 2012 at 8:54pm.

3.
Which of the following equations has an infinite number of solutions? (1 point)

3x – 3 = –4x
2y + 4 – y = 16
7x + 5 = 4x + 5 + 3x
6y – 2 = 2(y – 1)

5.
Write an inequality for the word sentence: k is less than zero. (1 point)

k > 0
k ≥ 0
k < 0
k ≤ 0

Solve the inequality.
6.
q – 12 ≥ –13 (1 point)

q ≥ 1
q ≥ –1
q ≥ 25
q ≥ –25

7.
12p < 96 (1 point)

p < 8
p < 108
p < 84
p < –8

8.
g/–5 < –18 (1 point)

g < –23
g > –90
g > 90
g < 90

9.
The result of 6 subtracted from a number n is at least 2. What numbers are solutions? (1 point)

n – 2 > 6; n > 8
n – 6 ≥ 2; n ≥ 8
n + 6 ≥ 2; n ≤ 4
n + 6 ≥ 2; n ≥ 4

My answers:
3. 7x + 5 = 4x + 5 + 3x
5. k < 0
6. q ≥ –1
7. p < 8
8. g > –90
9. n – 6 ≥ 2; n ≥ 8

7th grade math help Ms. Sue - Steve, Tuesday, December 18, 2012 at 11:06pm
3. ok
5. ok
6. ok
7. ok
8. not quite. You changed the direction ok, but you actually have to do the multiplication. (-5)(-18) = 90, so g>90

If you just multiply by 5, then you are left with -g < -90

9. ok

pretty good work!

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