For this case what we must do is a composition of functions which will be given by:
m (x) = 4x - 11
n (x) = x - 10
We have then:
m [n (x)] = 4 (x - 10) - 11
Rewriting the function:
m [n (x)] = 4x - 40 - 11
m [n (x)] = 4x - 51
Answer:
a. m [n (x)] = 4x - 51
The result 0.14 as percentage is 14%
Margin error is 38% ⁺/₋ 14%
Answer:
The least amount spent is £12.92
Step-by-step explanation:
Given
Number of Carton = 38
A carton = 45 pence
4 carton = £1.56
To spend the least amount of money, be needs to go for the least expensive option.
There are 100 pence in £1
So, there are x pence in £1.36
x * 1 =1.36 * 100
x = 136 pence for 4 carton.
To get the price of 1 carton, divide x by 4
x/4 = 136p/4
x/4 = 34 pence.
This means that he can get a carton of juice at the rate of 34p and at the rate of 45p.
The smallest of this is 34p.
Hence total amount spent =
34 * 38
amount = 1292p --- convert to £
Amount = 1292/100
Amount = £12.92
Hence, the least amount spent is £12.92
