456 students participated in switch day. The students raised money for charity so that the principal would approve of the day. I
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
A:linear function for both :
beach: y=-2x+100 (x=0, y=100)
dunes=5x+20 ( when x=0, y=20 (year1995)
B: after almost 11 years: it will be year 2006 and 2007 (after 11.429 years)
C: when the two rates of erosion are equal at the rate of 77 and almost 11 years
-2x+100=5x+20
-2x-5x=-100+20
-7x=-80
-80/-7=x
x=11.429
y=77.143
Describe the patterns shown by the erosion data measurements shown for each of the beaches in the table.
-the western beach erodes 2 ft/yr ;. The dunes build up at 5 ft/yr
Between which years will the beaches have approximately the same width?
-between 2006-2007
Assuming these rates remain constant, what can you do to get a better approximation of when the two beaches will have the same width?
-To get a better approximation of when the two beaches will have the same width you can solve a simultaneous equation. -2x+100=5x +20 . (x=11.429 y=77.143) .
