Sagot :
Answer:
they've watched tv for 10 hours last week
Step-by-step explanation:
0.9X = 9
X = 10
10 hours of tv
This is because the 9 hours is equal to 90% of the total time of the week before, and 9/9 is equal to 1, and 90/9 is equal to ten. You then add the ten precent value and the 90% value to get 10 hours
This is because the 9 hours is equal to 90% of the total time of the week before, and 9/9 is equal to 1, and 90/9 is equal to ten. You then add the ten precent value and the 90% value to get 10 hours