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 ( 48+ )
Otras preguntas
BRAINLIEST TO CORRECT ANSWER!!!!A circular garden has a diameter of 12 yards. What is the area of the garden? Use 3.14 for pi. O A. 452.16 ydO B. 56.52 ydO C. 1
FREE BRAINLY JUST HELP ME Jordan took out a loan for 14 months and was charged simple interest at an annual rate of 5.75 % . If the amount of the loan was $
Explain where the English language came from. Use detalls from the text to support your answer.
I need help my other question got banned
3k^2+12k-7kn-28n square meters and a length of 3k-7n meters. What expression represents the width of the rectangle?
Parle dr tes habitudes alimentaires
ONLY ANSWER IF YOU KNOW THE ANSWER (15 POINTS HELP PLEASE) CORRECT ANSWER WILL GET BRAINLEST AND LINKS WILL BE REPORTED THANKS. A number cube with six sides num
The rule of 70 can be used to determine a population’s doubling time. Doubling time is a measure of the.
KWHL prompt what do you know? What do you want to know? How will you learn? What have you learned?
What expression can be used to add 3/4 + 1/6
