Answer:
Mayby you should solve this equations.
I. 6x + 5y + 10 = 0
II. 4x - 7y + 25 = 0
2*I - 3*II
31y - 55 = 0
31y = 55
y = 55/31
6x + 5*55/31 + 10 = 0 --> x = -195/62
That would be (4/6) of 45 minutes, or 180/6 minutes, or 30 minutes.
You could also find her rate: 6 miles / 45 minutes, or 8 miles / 60 minutes.
Write an equation of ratios:
8 mi 4 mi
---------- = ------------
60 min x
Solving for x: 8x = 240; x = 30 minutes
Let X be the first and second number.
X+X = 18
+ X-X = 2
2X = 20 (divide both sides by 2
X = 10
Substitute the values to get the second number
10+X = 18
X = 18 -10
X = 8
Therefore, the numbers are 10 and 8
Answer:
ok
Step-by-step explanation:
same to same here but my rank is 34
Answer:
the answer is 27
Step-by-step explanation:
for the show your work all you have to do is write 3x3x3=27