Answer:
6x +24
Step-by-step explanation:
you factor out the 6 so 6x and 6*4 is 24
Answer:
Answer choice a.
Step-by-step explanation:
Let's do part of the work of solving the given system:
6x + 2y = −6
3x − 4y = −18
Multiply the first equation by 2 so as to make the coefficient of y = to 4:
12x + 4y = -12
Combine this result with the second equation:
12x + 4y = -12
3x − 4y = −18
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15x = -30
Note that these results are precisely the same as the equations in Answer Choice a.
1) 2 minutes = 2 x 60 = 120 seconds
2) 1500 meters per second x 120 seconds = 180 000 meters = 180 km
