Answer:
£1600.
Step-by-step explanation:
The commission he earns in the week = 640 - 160 = £480.
This 480 is 30 percent or 0.30 of the value of his sales, so
the value of his sales = 480 / 0.30
= £1600.
Y=Mx+b
y intercept= -8
Slope= -3 or -3/1
TO solve this question on "how large of a sample must Beth have to get a margin of error less than 0.04", we will use the margin of error formula:
Here, for a 80% confidence level,
(given)
Thus, margin of error, E=0.04
rearranging we get:
Plugging in gives us:
Thus, Beth's sample for the true proportion of high school students in the area who attend their home basketball games must have 256 students.
Answer:
(a)
(b)
(c)Using Linear Approximation,L(4.2)=137.6
Using Quadratic Approximation,
Step-by-step explanation:
Given:
(a)Linear Approximation,
(b)Quadratic Approximation,
(c)To approximate:
L(x)=48x-64
L(4.2)=48(4.2)-64=137.6
Also, Using Quadratic Approximation
Answer:
5 * ( 4 + 2 ) = 5 * 6 = 30
Step-by-step explanation:
(5*4) + (2*5) = 20 + 10 = 30
5*4 = 4 people need to pay $5
2*5 = $2 for 5 rides
Distributive Property:
(5*4) + (2*5) = 5 * ( 4 + 2 )
5 * ( 4 + 2 ) = 5 * 6 = 30