Walter and Brian each have a CD collection. The number of CDs in Walter's collection can be represented by x. The number of CDs in Brian's collection is 3 times the number in Walter's collection. The total number of CDs in both collections is 144. What is x, the number of CDs in Walter's collection?

36CDs

Step-by-step explanation:

The number of CDs in Walter's collection can be represented by x. The number of CDs in Brian's collection is 3 times the number in Walter's collection.

Hence, Brian's collection = 3x

The total number of CDs in both collections is 144.

We have the Equation:

x + 3x = 144

4x = 144

x = 144/4

x = 36

Therefore, the number of CDs in Walter's collection is 36 CDs

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6