Answer:
23 floors
Step-by-step explanation:
Subtract 7 from 30:
30 - 7
= 23
So, she traveled 23 floors.
The correlation of the scatter plot is negative.
20% as a fraction is 1/5
25% is 1/4
40% is 2/5
and 70% is 7/10
Depending on what your fraction is, you can find the answer in the fraction itself-
20%, you can take 20, 5 times to get to 100. Hence 1/5.
25 can go into 100 4 times (1/4)
40 is just 20 twice, so its 2/5.
Take 10 7 times and get 7/10.
Hope this helps a bit :)
CD = 13
6x - 5 = 4x + 1, combine like terms to get
2x = 6, divide 6 by 2
x=3, plug it in...
CD= 4(3)+1, which is 12 + 1
CD = 13
Answer:
The value of the first "
" in the number 
is ten times that of the second "
" in this number.
Step-by-step explanation:
What gives the number "" its value? Of course, each of its six digits has contributed. However, their significance are not exactly the same. For example, changing the first 
to 
would give 
and increase the value of this number by 
. On the other hand, changing the second 
to 
would give 
, which is an increase of only 
compared to the original number.
The order of these two digits matter because the number "" is written using positional notation. In this notation, the position of each digits gives the digit a unique weight. For example, in 
:
.
(Note that the index starts at 
from the right-hand side.)
Using these weights, the value can be written as the sum:
.
As seen in this sum, the first "" contributed 
to the total value, while the second "" contributed only 
.
Hence: The value of the first "" in the number is ten times that of the second "" in this number.
