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Fitness plan
This task is about finishing a number pattern and writing a rule.
Petra and Sina are working together on their fitness plan. Each day they plan to jog for 5 minutes longer than the previous day.
Here is their plan.
Question
2
Change answer
a) Fill in the missing numbers in the table.
a) Fill in the missing numbers in the table.
Day (
d
)
1
2
3
4
5
...
10
25
Time spent jogging (
t
)
(minutes)
4
9
14
Question
2
Change answer
b) Complete this rule relating the time spent jogging (
t
) to the number of the day (
d
).
b) Complete this rule relating the time spent jogging (
t
) to the number of the day (
d
).
t
=
c) On what day would they jog for exactly 84 minutes?
d) Why is it impossible for Petra and Sina to keep to this plan for a whole year?
