if one customer shows up, and she buys one song, that's $1.29, if she doesn't buy anymore, then that's the charge.
the first song is always at a full price, and after that, to encourage buying, the next ones are just 99 cents, let's see how it goes after a few songs purchases.
1 song.........................$1.29
2 songs.......................$1.29 + 0.99(2)
3 songs.......................$1.29 + 0.99(3)
4 songs.......................$1.29 + 0.99(4)
c songs.......................$1.29 + 0.99(c)
s(c) = 1.29 + 0.99c.
So the annual rate is 7% (0.07). The account starts with $50. The money sits in there untouched for 8 years.
1. 50 * 0.07 = 3.5
50 + 3.5=53.5
2. 53.5 * 0.07 = 3.745
53.5 + 3.745 = 57.245
3. 57.245 * 0.07
Now you do the rest. I did up to year two for you, go ahead and complete the rest by yourself. If you have questions please ask I would love to help. :)
Answer:
1. D
2. D
3.B
4. there's no picture there
5. C
6. A
7. B
8. C
9. C
10. C
Step-by-step explanation:
Hope this helps :)
Put this into ratio form:
20 baskets/ 4 minutes.
This means for every 4 minutes, you can make 20 baskets.
Now solve for 1 minute...how many baskets can you make in one minute.
You can solve this in many ways:
1. Cross Multiply:
20/4 = x/1...20×1= 20 ÷ 4= 5 baskets per minute
2. Simplify- (simpler way to solve)
20 baskets ÷ 4 minutes= 5 baskets in 1 minute
3. Critical Thinking:
how many times can 4 go into 20? 5 times. So there are:
5 baskets per minute
9236/43 = 214.79
214.79 rounded = 214.8
214.8 = r
So...
r = 214.8