heather can do 2 problems in 10 minutes....60 minutes in an hr
2/10 = x / 60...2 problems to 10 min = x problems to 60 min
10x = 120
x = 120/10
x = 12....so she can do 12 problems in 1 hr
Joel can complete 3 problems in 15 minutes...
3/15 = x / 60
15x = 180
x = 180/15
x = 12....so he can do 12 problems in 1 hr
so 24 problems can be done in 1 hr
Heather started with 3 problems done and Joel started with 2 problems done....added = 5 problems already done
and it is asking between 30 and 50 hrs.....so there is no equal sign in ur problem
ur answer is : 30 < 24x + 5 < 50 <==
Answer:
H.
Step-by-step explanation:
H is not a function because its x-values occur more than once.
HTH :)
5×500=2500
theo buys 2500 sheets of paper
Answer:
Suppose the fraction of blue balls at any given state n is 
. At the start of the process we have: 
=1.
Now consider the situation after having drawn n times.
The current fraction of blue balls is , the number of blue balls is therefore 10.
We either draw a red ball, with probability 1−. and the number of red balls, blue balls stay the same (we swap red for red):
(red)=
or we draw a blue ball, with probability and we obtain 10−1 blue balls on a total of 10 balls, thus:
(blue) = (10− 1)/10
The total probability of (fraction of) blue balls after this n'th draw is therefore:
=(red)(1−)+(blue)
which can be simplified to:
=0.9
which leads to:
fn=0.9
At the end of the 10'th draw the fraction of blue balls is equal to:
= 
≈ 0.348678
Answer:
75a
Step-by-step explanation:
2(vas)
2(35a)
75a
Hope this helps plz hit the crown :D
