One approach would be to find an equation describing the progress of the boat in a straight line in Ellen's direction FROM ITS STARTING POINT. The initial distance would be 1.0 miles, and the distance as a function of time would be d = 1.0 miles + (70 mph)x, where x is the elapsed time. When would the boat be .85 miles from Ellen?
Set the above distance formula = to 0.85 mile:
0.85 mile = 1.0 mile + (70 mph)x
-0.15 mile = -(70 mph)x
0.15 mile
x = ------------------ =
70 mph
When the boat starts out, its distance from Ellen is 1.0 mile. The boat speeds towards Ellen at 70 mph. We want to know how long it takes for the boat to cover 0.85 mile from its starting point, which would be 0.15 mile from Ellen in front of her.
distance = rate times time
Here the distance is 0.85 mile, and the rate is 70 mph.
The time required is then 0.85 mile
------------- = 0.0121 hour, or
70 mph
0.0121 hour (60 minutes / 1 hour), or
0.729 minute, or
43.7 seconds
Answer:
f(x) = f(x-1) - n <--- this is the recursive formula
f(0) = 100
f(1) = f(0) - n = 100 - n
f(2) = f(1) - n = 100 - n - n = 100 - 2n
f(3) = f(2) - n = 100 - 2n - n = 100 - 3n
in general the EXPLICIT formula is f(x) = 100 - xn , x=0,1,2,3
Step-by-step explanation:
hope this helps if it is wrong let me know have a blessed day
$1.25
She gave the 3pennies to get a quarter
5.03-3.78= 1.25
<h3>
Answer: -2, -2, -2, -2</h3>
Explanation:
If the common difference is 0, then we're adding 0 to each term to get the next term. However, adding 0 doesn't change the number. So that's why we have the same thing written four times.
As another example, let's say the common difference was 1 instead of 0. That would mean the first four terms are -2, -1, 0, 1 since we add 1 to each term to get the next one (eg: -2+1 = -1).
Answer:
total stick she has = 9*4 = 36
6 sticker is need in 1 page
so page required for 36 stickers = 36/6 = 6pages
Step-by-step explanation:
