Hello,
Please, see the attached file.
Thanks.
Answer:
x = -7
, y = 5 thus D)
Step-by-step explanation:
Solve the following system:
{4 x - 4 y = -48 | (equation 1)
5 x - 6 y = -65 | (equation 2)
Swap equation 1 with equation 2:
{5 x - 6 y = -65 | (equation 1)
4 x - 4 y = -48 | (equation 2)
Subtract 4/5 × (equation 1) from equation 2:
{5 x - 6 y = -65 | (equation 1)
0 x+(4 y)/5 = 4 | (equation 2)
Multiply equation 2 by 5/4:
{5 x - 6 y = -65 | (equation 1)
0 x+y = 5 | (equation 2)
Add 6 × (equation 2) to equation 1:
{5 x+0 y = -35 | (equation 1)
0 x+y = 5 | (equation 2)
Divide equation 1 by 5:
{x+0 y = -7 | (equation 1)
0 x+y = 5 | (equation 2)
Collect results:
Answer: {x = -7
, y = 5
Answer:
<em><u>3:25pm</u></em>
Step-by-step explanation:
2:00PM + (40min + 45min) = 85min
<em>hour= 60min</em>
85 - 60 = 25 , its means the amount of the time is 1hour and 25min
1hr25min + 2hr = they finished at <u><em>3:25pm</em></u>
C) is the answer
An educated guess is an hypothesis.
A statement of pure fact is probably not a theory because it's not an educated reason
Ok 1 look at the question you spelled dogs wrong and the answer is 5 dogs and 33/100 of another
