The answer is 'D'
When you divide 48 and 78 by 2, you get 24 and 39. Then divide 24 and 39 by 3 and you will get 8 and 13, which don't have any common factors.
The same happens with 12 and 30...
When 12 and 30 are divided by 2, you get 6 and 15. Then divide 6 and 15 by 3 and you get 2 and 5, which have no more common factors.
The answer is A because if you graph 2x from the origin you will get the blue line perfectly whereas y=-4x plotted will come up with your red line and walla. :)
3(3)^2-2(5)= 17
2(3)^2-3(5)=3
Answer: 14
Hope this helps!!!!!!!!
Answer:
1) B. -2 hours per person
2) C. 3.60 per pound
Step-by-step explanation:
1)
We can make a slope triangle connecting the points (4, 12) and (10,0)
We get -12/6, or -2 as our slope & final answer
2)
You can do x/y to find the unit rate for this one, or in this case 18/5 = 3.6
