HV1 introduction formulas

• Wiskunde
• Middelbare school
• vwo
• Leerjaar 1

HV1 introduction formulas

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3.1 formulas

example

money raised = 4 + 5 • hours of work

formula

money raised = 4 + 5 • number of hours

important :

use the order of operations

fixed number

easy to find 

variable/ certain number

what is the fixed number in this example
temperature = 21 + 3 • number of hours

1. 21
2. 3
3. there is no fixed number
4. temperature

what is the variable number in this example
temperature = 19 + 5 • number of hours

1. 19
2. 5
3. there is n't a variable number

what is the variable number in this formula
money = 14 • number of hours + 12

1. 14
2. 12
3. this isn't a formula
4. to bad paenutbutter

................... =  ................ + ..................... • ......................

11

income

3.50

number of hours

given are two formulas in ex. 1e
money raised = 8 + 2.50 • number of laps run
money raised = 12 + 2 • number of laps run

what is the best thing you can do with these exercises

1. read the question
2. read the question
3. read the question
4. give up without trying

to which extent do you feel capable of making exercise 3,4,5 on your own?

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