Arithmetic progression - math word problems - last page
Arithmetic Progression is just a sequence of numbers so that the common difference of any two consecutive numbers is a constant value.Formula for n-th member is:
an=a1+(n−1)⋅d
Sum of n AP members:
sn=n⋅2a1+an
Number of problems found: 394
- Sequence
In the arithmetic sequence, is a1=-1, d=4. Which member is equal to the number 203? - Ravens
The tale of the Seven Ravens was seven brothers, each of whom was born exactly 4 years after the previous one when the eldest of the brothers was 4-times older than the youngest, mother all curse. How old were seven Ravens brothers when their mother curse - Numbers
Determine the number of all positive integers less than 5286382 if each is divisible by 19, 5, 23. What is its sum? - Lines
How many points will intersect 27 different lines where no two are parallel?
- Sequence 3
Write the first 6 members of an arithmetic sequence: a5=15, a11=39. - Sequence 2
Write the first 4 members of an arithmetic sequence a8=23, d=2. - Sequence Write the first 6 members of an arithmetic sequence: a1=-7, d=-5.
- Crystal
The crystal grows every month at 1.2 permille of its mass. How many months does it take to develop from weight 177 g to 384 g? - Wire
One pull of wire is reduced by its diameter by 14%. What will the wire diameter be with diameter 19 mm over 10 pulls?
- Gauss
Help little C.F. Gauss sum all the integers from 1 to 400. - Geometric mean
Calculate the geometric mean of numbers a=15.2 and b=25.6. Determine the mean by construction where a and b are the length of the lines. - Geometric progression 2
There is a geometric sequence with a1=3.6 and quotient q=-2.1. Calculate a17. - Geometric progression
Fill 3 numbers between 5 and 405 to form a geometric progression. - Profitable bank deposit 2012
Calculate the value of what money is lost to the creditor with a deposit € 5200 for 5 years if the entire duration is interesting 3% p.a. and tax on interest is 19%. Annual inflation is 4.4% (Calculate what you will lose if you leave money lying idle at n
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