Proportional, with a ratio or rate of change 2/3
400 cubic meters of gravel is needed to make 850 cubic meters of concrete.
If you wanna know how I got my answer then just ask. :)
Hope this helped!
Answer:
Y=bx+c
Step-by-step explanation:
That should be right
Answer:
One solution: (2.5,0)
Step-by-step explanation:
We can use substitution for the solution. Substitute y=2x-5 to -8x-4y=-20 so that you end up with -8x-8x+20=-20. Next you want to add like terms which will be -16x+20=-20, next you want isolate x by subtracting 20 from both sides and leaves you with -16x=-40. Divide -16 on both sides to fully isolate x and will leave you with x=2.5. Now substiture in 2.5 for x in y=2x-5 to get y=2(2.5)-5 which will then lead to y=0.
Answer:
2/ 3
Step-by-step explanation:
m = rise / run