Answer:
27/44 i think
Step-by-step explanation:
so first i did 9 times 3 which is 27. then, did 11 times 4 which is 44.
Answer:
Karen needs to spend $4.5 to buy new hair bands.
Step-by-step explanation:
Given:
Hair bands Karen have = 3
cost of 8 hair bands = $1
Total Hair bands she require = 39
Hence Number of of new hair bands require = Total Hair bands she require - Hair bands Karen have = 39 -3 = 36
we need to find how much money she need to spend to buy new hair bands.
cost of 8 hair bands = $1
Cost of 36 hair bands = money need to spend on hair bands
By using Unitary method we get;
Money spend on new hair bands = 
Hence,Karen needs to spend $4.5 to buy new hair bands.
Answer:
The average rate of change of Demand between 40 and 175 units sold is of -0.1045.
Step-by-step explanation:
Average rate of change:
The average rate of a function f(x) in an interval [a,b] is given by:

In this question:

What is the average rate of change of Demand between 40 and 175 units sold?
. So


So

The average rate of change of Demand between 40 and 175 units sold is of -0.1045.
132=3x+x
132=4x
x=33
The length of the shorter piece is 33 inches