The formula for simple interest =
I = PRT
P = initial capital = $7000
R = rate = 0.02 in this case
T = time = our variable we are solving for
Thus substitute the parts into the equation we get
280 = 7000*0.02*T
Solving for T we get A or 2 years
There are a lot of equivalent ratios but 40:49 is 1 of them
You did:
5 episodes / 4 hours = 1.25 episodes/hour
You found how many episodes they watched in one hour, when you should have found how many hours they watched one episode. This is because you need to find how long it took them to watch 24 episodes.
So instead:
4 hours / 5 episodes = 0.8 hours/episode
Then you multiply 0.8 and 24 = 19.2 hours
X - the price of each pair of shoes;
3 x + 7.50 + 0.06 * 3 x = 126.81
3 x + 0.18 x + 7.50 = 126.81
3.18 x = 126.81 - 7.50
3.18 x = 119.31
x = 119.31 : 3.18
x = 37.52
Answer:
A ) $37.52