Answer:
the amount you owe, and how much energy you have used
Because triangles also equal a total of 180 degrees, the answer is B
La respuesta correcta es
579
597
759
795
957
975
555
557
575
559
595
777
775
757
779
797
999
995
959
997
979
577
599
755
799
955
977
Answer: 4 ties or draws
8 wins, 4 ties, 20 losses
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Explanation:
The ratio 2:1:5 is of the format wins:ties:losses where getting a draw is the same as getting a tie.
So one possibility is that they won 2 matches, tied once, and lost 5 matches. The only problem is that it doesn't fit with the statement that "The team lost 12 more matches than they won."
We could guess-and-check our way to the answer, but I think using algebra is the most efficient route.
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Let x = number of ties
2x = number of wins and 5x = number of losses
Note the ratio 2x:x:5x reduces to 2:1:5 after dividing everything by x.
Since the team lost 12 more matches than they won, this means,
loss count = (win count) + 12
5x = (2x) + 12
5x-2x = 12
3x = 12
x = 12/3
x = 4
The team tied 4 times and has 2x = 2*4 = 8 wins and 5x = 5*4 = 20 losses.
The ratio 8:4:20 reduces to 2:1:5 when you divide all parts by the GCF 4.
Also, the gap between 8 wins and 20 losses is 20-8 = 12 to help fully confirm we have the correct answer.
Step-by-step explanation:
5×0.3+2y=20
5×0.3= 1.5
1.5+2y=20
1.5+2y÷2=20÷2
1.5y=10
y=0.15
