Answer:
203
Step-by-step explanation:
you just have to just add up. then you get it
<h3>
Answer: 0.85</h3>
Explanation:
If we start off with $100 and decrease by 15%, then we are decreasing by $15 since 15% of 100 = 0.15*100 = 15
We start with $100 and drop to 100-15 = 85. Dividing this over the original 100 gets us 85/100 = 0.85
Put another way, 100% - 15% = 1 - 0.15 = 0.85
The decimal multiplier for "decrease by 15%" is 0.85; this sort of thing is useful if you wish to apply multiple discounts to a product.
Side note: the 0.85 can be thought of as 85%, so the product's new value is 85% of its original value
<span>2t + 8 - 8 - t = -3
t = -3 (combine like terms)</span>
Answer:
See below
Step-by-step explanation:
<u>Recursive Formula for Arithmetic Sequences</u>
- <u />
![a_n=a_{n-1}+d](https://tex.z-dn.net/?f=a_n%3Da_%7Bn-1%7D%2Bd)
represents the nth term
represents the preceding term
represents the common difference
<u>Explicit Formula for Arithmetic Sequences</u>
- <u />
![a_n=a_1+(n-1)d](https://tex.z-dn.net/?f=a_n%3Da_1%2B%28n-1%29d)
represents the nth term
represents the 1st term
represents the common difference
<u>Ernest's Schedule Recursive Formula</u>
We can see that the common difference is
because for each week, Ernest swims 0.25 more kilometers than the preceding one. Therefore, the recursive formula for Ernest is ![a_n=a_{n-1}+0.25](https://tex.z-dn.net/?f=a_n%3Da_%7Bn-1%7D%2B0.25)
<u>Ernest's Schedule Explicit Formula</u>
Given our common difference
from earlier and the fact that
is our first term, the explicit formula for Ernest is ![a_n=1+(n-1)0.25](https://tex.z-dn.net/?f=a_n%3D1%2B%28n-1%290.25)
<u />
<u>Denise's Schedule Recursive Formula</u>
We can see that the common difference is
because for each week, Denise swims 0.5 more kilometers than the preceding one. Therefore, the recursive formula for Denise is ![a_n=a_{n-1}+0.5](https://tex.z-dn.net/?f=a_n%3Da_%7Bn-1%7D%2B0.5)
<u>Denise's Schedule Explicit Formula</u>
Given our common difference
from earlier and the fact that
is our first term, the explicit formula for Denise is ![a_n=1+(n-1)0.5](https://tex.z-dn.net/?f=a_n%3D1%2B%28n-1%290.5)