Answer:
16.643 Kilograms
Step-by-step explanation:
Total means the sum of the number in this situation so first, you add
1.453 kg and 3.8 kg = 5.253 kg
then you add
5.253 kg and 11.39 kg = 16.643 kg
so the answer is 16.643 kilograms.
Answer:
D
Step-by-step explanation:
To check this answer, you could obviously graph the points, but without graphing, you can tell the line would be straight because each x value is multiplied by the same number to get the corresponding y value.
3 x 5 = 15, 4 x 5 = 20, etc. This shows linear growth. If each x value were multiplied by twice itself (3 x 6, 4 x 8, and so on), you wouldn't have a straight line because the number that x is multiplied by changes depending on the value of x.
The rate of change of a graphed function is the ratio of the change in the ordinate value to the change in the abscissa value between two points. When the plot has y on the vertical axis and x on the horizontal axis, the rate of change is
.. (change in y)/(change in x)
When the plot is of a straight line, you find the rate of change by locating two points on that line whose coordinates you can read from the graph. Then subtract the y-value of the first from that of the second to get the change ∆y. Do the same for the x-values: subtract the first from the second to get ∆x. The "rate of change" between the points you selected is
.. rate of change = (∆y)/(∆x)
If the plot goes upward from left to right, the rate of change is positive. If it goes downward left to right, the rate of change is negative.
V1=30km/hr
v2=20km/hr
v=2v1v2/(v1+v2)
=2*30*20/(30+20)
=24km/hr
Answer= -4y+12
Hope this helped
