Starting off, we can multiply the third equation by 2 and add it to the third to get rid of both the x and y variables. Next, we get z=1. Plugging that into 3y-5z=-23, we get 3y-5=-23. Adding 5 to both sides, we get 3y=-18. After that, we can divide both sides by 3 to get y=-6. Plugging that into -2x-y-z=-3, we get -2x+6-1=-3=-2x+5. Subtracting 5x from both sides, we get -2x=-8. After that, we can divide both sides by -2 to get x=4.
Answer:
3.75
Step-by-step explanation:
DF = 6/24 × 15 = 3.75
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97.45 / 5 = 19.49 per gallon
and then there is 21.95 per gallon
the better deal would be the 5 gallon bucket for 97.45 because if u buy it this way, it is cheaper by the gallon
Answer:
45
Step-by-step explanation:
6^2 + 3√9
=36 + (3 x 3)
=36 + 9
= 45
Answer:1.2 m/s
Step-by-step explanation:
Total distance covered is 500+500+200 m so the average velocity is given by
V = distance/time
V=1200/(17*60)
V=1.176 m/sec
