Solve the inequalities below algebraically.
Solve this inequality using your graphic calculator: .
You can drive a Smart Fortwo for no more than € 5,00 per day! Assume you bought a Smart on 1 januari 2006 and you pay this 5 euro per day. In addition you have to pay for maintenance: for 1,5 cent per driven kilometre you can have a contract that covers almost all cost of maintenance. What remains is the cost for petrol. You can drive 15 kilometres on 1 liter of petrol and 1 liter of petrol costs about € 1,50.
How many cents per kilometre do you have to pay for petrol and maintenance together?
How much does this Smart cost per year when you drive a total of km per year?
Make an inequality to suit the question: What is the maximum number of kilometres per year you could drive in this Smart if you wish to spend € 4000.00 or less per year? Solve the inequality algebraically.
As it happens, the maintenance subscription of cents per driven kilometre is effective from km/year. When you drive less, you pay a subscription as if you drive km/year. Give the complete formula for the yearly costs , depending on the number of driven kilometres .
Two cars drive on the motorway, both maintaining a constant speed. Driver A drives at a speed of km/h. Driver B drives at a speed of km/h. When driver B arrives at the IJsselbrug near Deventer he is kilometres behind driver A. This happens at time . The distance (in kilometres) from Deventer is represented by .
For both cars write down a formula for as a function of .
Calculate after how many minutes car A is overtaken by car B.
Calculate algebraically how long the distance between the two cars is less than kilometres.