Answer:
2x+20
Step-by-step explanation:
Given
Age of Ethen = x
If Raj is 8 years older than Ethen, then;
Raj = x + 8
6 years time
Ethen age = x+ 6
Raj = x+8+6 = x+14
Sum of ages in 6 years time = x+6+x+14
Sum of ages in 6 years time = 2x + 20
Hence the required sum of ages is 2x+20
the new tanks only hold 1/9 th of the original tanks only
3:5
Where 3 is the green markers, and 5 is the purple.
We need to find a ratio where the numbers are consistent and add up to 32.
3:5
6:10
9:15
12:20
12:20 is the right proportion. It adds up to 32.
There are 20 purple markers.
I hope this helps!
~kaikers
The conclusion is valid
it is a systematic random sample
and the second one is a line graph (I think)