Question

On​ average, people of a certain country spend 20.5 hr per month watching videos on a computer or on a television. They spend 2.1 more hours watching videos on a television than on a computer. How much time do they spend on​ each?

Answer 1

Computer: 9.2

Television: 11.3

Explanation:

T=television

C=computer

T+C=20.5

C+2.1=T

Subs C+2.1=T into T+C=20.5,

C+C+2.1=20.5

2C+2.1=20.5

2C=18.4

C=9.2

Subs C=9.2 into C+2.1=T,

9.2+2.1=T

T=11.3