36? because each horse can get 1,2 or 3 place. Hope this helped! :)
Answer:
<em>x = 1</em>
This is the equation that I interpreted:
6/(x) - 3 = 3/(x)
I have never worked with determining extraneous equations before, so I cannot answer the second part.
Answer:
x⁴ + 3x³ + 4x² + 12x = 0
<=> x³(x + 3) + 4x(x + 3) = 0
<=> (x³ + 4x)(x + 3) = 0
<=> x(x² + 4)(x + 3) = 0
Answer:
46 minutes
Step-by-step explanation:
Teresa purchased a prepaid phone for $15
Long distance calls cost 24 cents a minute using this card
She used the card just once to make a long distance call
The remaining credit on her card was $3.96
Therefore the minutes in which her call lasted can be calculated as follows
Let x represent the minutes
15 - 24/100x= 3.96
15-0.24x= 3.96
-0.24x= 3.96-15
-0.24x= -11.04
x= 11.04/0.24
x = 46
Hence Teresa call lasted for 46 minutes
