#1 ok
#2 is correctly calculated, but the interest rate is 30%
#3 seriously? Did you ask yourself whether $3.14 could grow to #30,000 in 5 years?
#4 Can't tell. Your whole question is impossible to parse. That can't be the way it was written.
I am reviewing for my final exam on December 11. I'm working on a practice sheet and I want to know if my answers are correct.
1) Find the equation of the line passing through the points (1,3) and (5,2). Put into slope-intercept if possible?
2-3/5-1= -1/4
y-3=-1/4(x-1)
y=-1/4x+13/4
2) Determine the simple interest rate at which $1000 grows to $1,300 in 300 days?
A= 1,300 P=1,000 T=1 (1 year right? Since the unit is by years I'm guessing)
1300=1000 (1+r)
=.3=r
3) How much money should be deposited in a bank earning interest at 3.0% per year compounded monthly such that at the end of 5 years, the amount will be $30,000?
m= 12 (since it's monthly) t= 5 (5 years) r=0.03 A=$30,000
30,000=p(1+0.03/12)^12*5
= 3.14
4) 50% of the fruit on a farm is pick your own. 25% of all the fruit that is picking your own and apples. What is the percentage of fruit that is apples given that it is pick-your own?
p(A) = Pick your own p(B) = apples
Find P(B l A) I'm guessing:
p(B l A) = P(BintersectA)/p (A) = .25/.50 = .5
5 answers
Thats what the calculator gave me and the question was actually written like that. It was on a review sheet.
But are 3 and 4 set up right? That's all I'll ask and I'll shut up.
I think I used the wrong formula for 3.
Actually, the formula for #3 is correct. I have no idea how you ended up with 3.14 ... I got 25826.10
1 answer