Direct+and+Partial+Variations

-A Fido mobile plan charges $20 each month with free Internet browsing. You are also charged an activation fee of $50.

A Roger's mobile plan with free Internet browsing charges you $25 each month. There is no activation fee. Which company would be less expensive to hire?

- Amusement park A charges $3 dollars per ride. To enter the amusement park, you have to pay $16. Amusement park B charges $7 dollars per ride. The entrance is free. Which amusement park would be more expensive? Sara H.

1. Pizza hut costs $17 per medium pizza and the delivery is free. Pizza pizza costs $10 per medium pizza and $20 for the delivery. Emily wants to have a pizza party and she wants to know what shop to buy pizza for a cheaper prize.[I Gamage]

2.In a Hilroy book shop a paperback novel costs $16.00 plus tax. In a matrix book shop a paperback novel costs $15.00 without any tax. George wants to buy books for the school library and he knows what book shop he should buy the books for a cheaper price.[S.Khokhar]

3.A salesman earns $1000 per month plus 8% of total sales. hence if he sells $50000 worth of product in a month his earnings are $1000 +0.8 * $50000.

4. A bag of flour costs $7.00 for a 700g bag. Graph the variation. What is the constant of variation? is it a direct variation? [V.Khan]