cadieux
cadieux
15-11-2014
Mathematics
contestada
What is the sum of the two digit multiples of 11?
Respuesta :
superkoopasirf
superkoopasirf
15-11-2014
[tex]S = \frac{1}{2}n(a + l)[/tex]
[tex]a = 11[/tex]
[tex]l = 99[/tex]
[tex]n = 9[/tex]
[tex]S = \frac{1}{2}9(11 + 99)[/tex]
[tex]S = \frac{1}{2}9(110)[/tex]
[tex]S = \frac{990}{2}[/tex]
[tex]S = 495[/tex]
Answer Link
awesome099
awesome099
15-11-2014
11+22+33+44+55+66+77+88+99
33+77+121+165+99
110+286+99
396+99
495
Answer Link
VER TODAS LAS RESPUESTAS ( 44+ )
Otras preguntas
mom paid $2.40 for a 3/4 pound of cereal, how much is that per pound
what is the active component of dynamite
How do i write 98.5 in scientific notation?
what are the different ways in which power sharing among different communities is organised today
why does a simple oscillating pendullum not produce a vibrating sound
What is the sum of the first 100 positive odd numbers?
Why does convection occur only in fluids?
mom paid $2.40 for a 3/4 pound of cereal, how much is that per pound
When cai traveled from New orleans,Louisiana to the Ozark mountains in Arkansas , the elevation changed from 7ft below sea level to 2,314 above sea level. How m
3 3\8 lb ___ 54 oz.Complete the inequality statement.
