Answer :
No.
Given that,
Jean has in her savings account = $280
Deposit amount = $30.
What is proportionality?
The term proportionality describes any relationship that is always in the same ratio. The number of apples in a crop, for example, is proportional to the number of trees in the orchard, the ratio of proportionality being the average number of apples per tree.
Here,
Jean has $280 initially in her savings account,
she will deposit $30 in her account every week.
Since after every week the saving becomes,
After 1 week she would have $280+$30=$310.
After 2 weeks she would have $310+$30=$340.
The proportional time is "2 to 1",
but the proportional savings is $340 to $310, which is a different proportion.
When two or more parameters are directly or indirectly proportional to one another, their relationship is expressed as a = kb or a = k/b, where k indicates how the two variables are related. This k is known as the proportionality constant.
So the amount of money in her account is not proportional to the number of weeks.
To Learn more about proportionality
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