High School

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The cost for renting a skip for a number of days is given by the formula:

Cost (£) = 40 × number of days + 90

Jack pays £330. How many days did Jack rent a skip for?

Answer :

To determine the number of days Jack rented the skip for, we can use the formula given:

[tex]\text{Cost (£)} = 40 \times \text{number of days} + 90[/tex]

We know Jack paid £330 for renting the skip, so we can set up the equation:

[tex]330 = 40 \times \text{number of days} + 90[/tex]

Let's solve for the number of days:

  1. Subtract 90 from both sides to isolate the term with the days:

    [tex]330 - 90 = 40 \times \text{number of days}[/tex]

    [tex]240 = 40 \times \text{number of days}[/tex]

  2. Divide both sides by 40 to solve for the number of days:

    [tex]\frac{240}{40} = \text{number of days}[/tex]

    [tex]6 = \text{number of days}[/tex]

Therefore, Jack rented the skip for 6 days.

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