Answer:
C
Step-by-step explanation:
3(3 + x) = 15 + x
Open bracket
9 + 3x = 15 + x
Collecting like terms
3x - x = 15 - 9
2x = 6
Dividing by 2
x = 6/2
x = 3
no. of boys : no.of girls
100 : 140
to get the simplest ratio you gotta divide both with a common factor
Because both 100 and 140 share a common factor of 20
the simplest ratio will be
100/20 : 140/20
5:7
5:7 is the simplest ratio
I only know 1 & 4 .. 2 & 3 seem hard to me ..
X >7
X< -7
-
N = 1/3 -0
n = 1/3
answer
n = 1/3
It is Irrational because is can not be written as a fraction
