You are probably studying arithmetic sequences and series
let the first term be a
common difference is -10
and the number of terms is 5
Sn = (n/2)[2a + (n-1)d]
200 = (5/2)[2a + 4(-10)]
400 = 5[2a - 40]
400 = 10a - 200
600 = 10a
a = 60
So on the first day they must sell 60 tickets
check: 60 + 50 + 40 + 30 + 20 =
assume that they will sell x tickets on the first day.
Sale on second day will be x-10
third day x-20
fourth day x-30
fifth day x-40
if we add them all up
so they have to sell 60 on the first day
50 on the second
40 on the third
30 on the fourth
and 20 on fifth day.
find the difference using model subtraction with renaming
The product of a number and seven increased by twenty-three is equal to one hundred seven.
you can go on my web site name it great com visit
algebra - 2) A high school drama club is putting on their annual theater ...
math - if i have 5 days to sell 200 tickets by friday how many tickets do i have...
Quadratic equations - OK. I think I have my head around most of this but for one...
math - each member of the committee has agreed to sell 50 tickets to the fair. ...
ISAT practice - Ben sold 50 tickets to a basketball game. Adult tickets are $5 ...
math - how do u solve the follow question? you are selling tickets to a football...
math - A)Use the quadratic equation: Tickets=-0.2^2+12x+11, to determine the ...
algebra 2 - You are selling tickets for the homecoming football game. Student ...
Alegebra - x=1 is the day tickets go on sale. Tickets=-0.2x^2+12x+11 use the ...
Algebra - x=1 is the day tickets go on sale. Tickets=-0.2x^2+12x+11 use the ...