Answer: 200cm long
Step-by-step explanation:
Let the length of the rod be x
red = 1/4 of the rod , which means 1/4 of x
orange = 2/5 of x
The remainder = x - ( +)
= x - ()
=
yellow = 2/7 of the remainder , that is
yellow = 2/7 of
yellow =
and it was given that the yellow section was 20cm long , that is
= 20cm
x = 20 x10
x = 200
Therefore the rod was 200cm long
Answer:
a)29
b)70
Step-by-step explanation:
The sum of the interior angles in a triangle is 180.
a)95+56+a=180 b)40+2b=180
151+a=180 2b=180-40
a=180-151 2b=140 /2
a=29 b=70
Step-by-step explanation:
3x - 4 < 12
3x < 16
x < 16/3
We are looking for a set with elements that are less than 16/3 or 5.333...
Only Set 4's elements are all less than 16/3. Hence it is the answer.
Answer:
14
Explanation:
First factor the expression:
2(3+4)
Add the numbers:
2(7)
Multiply the numbers:
14