The third one is true
good luck
Answer:
-7 > v OR vice-versa [v < -7]
Step-by-step explanation:
Combine like-terms [-5v > 35], then divide by -5.
NOTE: Since you are dividing by a negative, reverse the sign.
I attached a pic with my work on it. Hope this helps!
Answer
n = 30
Explanation
To solve for n, you have to isolate it by 'getting rid' of the 18, 2, and negative sign.
You 'remove' these numbers in backward PEMDAS.
So to 'remove' the 18, you subtract both sides by 18.
3-18 = -15
-n/2+18-18 = -n/2
So now you are left with -15 = -n/2.
To 'get rid' of the 2, you multiply each side by 2.
-15×2 = -30
-n/2×2 = -n
And now you have -30 = -n.
To 'get rid' of the negative sign, you multiply both sides by -1.
-30×-1 = 30
-n×-1 = n
So you get 30 = n or n = 30.
If you still have questions I'll answer them in the comments (under this question).
Answer:
Computer disks are $4 each
Notebooks are $3 each
Step-by-step explanation:
For the first equation
<em>$4 x 2 disks = $8</em>
<em>$3 x 3 notebooks = $9</em>
<em>$9 + $8 = </em>$17
For the second equation
<em>$4 x 5 disks = $20</em>
<em>$3 x 4 notebooks = $12</em>
<em>$20 + $12 = </em>$32
