<span>The charity needs at least 1001 entries to raise more than $25000.
Let n be the number of race entries, i be the income of the race, and c the cost of the race.
The money that the 5K brings in is given by
i = 25 * n + 5000
The cost is given by
c = n * 5
Now if the charity needs to raise more than 25000 then the income minus the cost must be greater than 25000.
25000 < i - c
subsituting for i and c
25000 < i - c = (25 * n + 5000 ) - (5 * n)
simplifying results in
25000 < 25*n - 5*n + 5000
25000 < 20*n + 5000
20000 < 20*n
1000 < n
The number of entries must be greater than 1000. Since entries must be an integer the charity needs at least 1001 entries.</span>
Let's plug in some numberz!!
And turn words into numberz.
Let x represent laps.
Let y represent total of laps.
Boys ran sixteen laps!!
Girls ran four more laps than boys.
Boys ran 16, so what's 16+4?
Correct, it's 20!!
Our equation is 0.25x = y.
Plug it in!!
What's 0.25 x 20?
Nailed it. It's 5!!
Hope this helped!
Answer:
you have to break it into 3 shapes tge first is 5×3=15. tge second is 4×2=8, tge 3rd is 1/2 (4)×3=6, 15+8+6=20 units
Answer: 2.500 g
Step-by-step explanation: N/A
Answer:
(B)Stratified
Step-by-step explanation:
Stratified sampling refers to a sampling method in which the entire population is first divided into groups/strata before a random sample is taken from each strata.
The school population in this case has been divided into these strata,
- Sophomore class
- Junior class; and
- Senior class
From these classes, a random sample of 49,39 and 48 students respectively was then taken,
