Nine year olds --> 36
ten year olds ----> 48
then simpifly this as if you would to a fraction
6/8 so the ratio would be 6:8
Answer:
D
Step-by-step explanation:
A recursive formula lets us calculate a term in the sequence by multiplying the previous term by the common ratio r
for the sequence
- 3, 9 , - 27 , 81....
the common ratio r is
r = 9 ÷ - 3 = - 27 ÷ 9 = 81 ÷ - 27 = - 3
Then the recursive formula is
f(n) = - 3 f(n - 1) if n > 1
f(1) = - 3
option D
About 6406 people will be subscribed because every month 146 people join
Answer:
x= 60
Step-by-step explanation:
Total number of people= x
Let the number of children, men and women be c, m and w respectively.
c= ⅓x -----(1)
m= ⅗w -----(2)
w= c +5 -----(3)
Substitute (1) into (3):
w= ⅓x +5 ----(4)
Substitute (4) into (2):
m= ⅗(⅓x +5)
m= ⅕x +3 -----(5)
Since the total number of people is x,
c +m +w= x -----(6)
Substitute (1), (5) and (4) into (6):
⅓x +⅕x +3 +⅓x +5= x
⅔x +⅕x +8= x
x= 4(15)
x= 60
5/8 = 5 ÷ 8 = .625
move decimal 2 places to right for %
.625 = 62.5%