Factorise completely (2x+1)^2 -(x-1)^2
1 answer:
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To produce a box plot, we need the lowest and highest value from the data set. We also need the lower quartile (
), median (
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).
All these data and the box plot is shown in the diagram below
All these data and the box plot is shown in the diagram below
Answer:
With $30, Peter can afford 5 hours
Step-by-step explanation:
Given
Insurance Charge = $7.5
Charges = $4.5 per hour
Required
Determine the number of hours $30 can afford
First, we need to determine the equation.
<em>Total Charges = Charges per hour + Insurance Charge</em>
Substitute values for Charges per hour and Insurance Charge
Total Charges = 4.5 per hour + 7.5
Let the number of hours be n;
So,
Total Charges = 4.5n + 7.5
To calculate Peter's; substitute 30 for total charges
Subtract 7.5 from both sides
Divide both sides by 4.5
Hence;
<em>With $30, Peter can afford 5 hours</em>