hi all,
i have a few maths questions i would like to ask..
thanks to those who attempt to answer
1) On average, a baby is born somewhere in the world every 2 seconds. How many babies are born each year?
2) Is the variable "number of road facilities":
A-Ordinal
B-Nominal
C-Continuous
D-Discrete
3) Find the sum of all the two digit numbers that are made up of 2 even numbers.
Many, many thanks!!
2007-09-04 22:37:25 · 5 answers · asked by i love...love 2 in Science & Mathematics ➔ Mathematics
1)
365*24*60*60/2 chidren ( year with 365 days )
2)
discrete
3)
20 + 22 + 24 + 26 + 28 = 120
40 + 42 + 44 + 46 + 48 = 220
6...................................... = 320
8....................................... = 420
___________________________+
......................................... 1080
2007-09-04 22:51:07 · answer #1 · answered by gjmb1960 7 · 0⤊ 0⤋
number born in 1 year
= 365*24*60*60/2
= 365*12*60*60
= 15768000
sum of all two digit numbers having even digits is given by
= ( 8+6+4+2)*10 + [(8+6+4)*10 +2*3] + [(8+6+2)*10 + 3*4] + [(8+4+2)*10 + 3*6] + [(6+4+2)*10 + 3*8]
=200 + 186 + 172 + 158 + 144
= 860
2007-09-05 05:54:01 · answer #2 · answered by sv 7 · 0⤊ 0⤋
Question-- 1. 1,57,68,000.
2. Nominal
3. 880
2007-09-05 06:06:51 · answer #3 · answered by Sasi Kumar 4 · 0⤊ 0⤋
babies = 1 year (365.25 days/year) (24 hr / day ) ( 3600 sec / 2 hr)
babies = 15,778,800
3) sum = x + x + 2 = 2x + 2
2007-09-05 05:54:49 · answer #4 · answered by CPUcate 6 · 0⤊ 0⤋
15681600 babies a year
2007-09-05 08:07:06 · answer #5 · answered by shaman 1 · 0⤊ 0⤋