Answer: I’m not sure but I think the answer is $255
Step-by-step explanation:
well the name of the phase for that is called freezing. I think that's we have to look for, maybe not, but I hope I helped
Answer:
<em>(D).</em>
Step-by-step explanation:
= A +
(A). 12 + 16 > 20
(B). 10 + 18 < 30
(C). 4 + 5 < 12
<em>(D). 8 + 16 = 24</em>
She can only talk for 400 minutes or 6 hours and 40 minutes
The mistake was when she multiplied the 2nd equation by 5, she forgot to also multiply that last number 10 by 5 as well.
correction :
5x + 3y - z = 15
-x + 2y + 3z = 10...multiply by 5
---------------------
5x + 3y - z = 15
-5x + 10y + 15z = 50 (result of multiplying by 5)
--------------------add
13y + 14z = 65