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Keith_Richards [23]
3 years ago
5

Suppose you receive $100 for a graduation present, and you deposit it in a savings account. then each week thereafter, you add $

5 to the account but no interest is earned. The amount in the account is a function of the number of weeks that have passed. Use your equation to find when you will have $310 in the account.
Mathematics
1 answer:
nadezda [96]3 years ago
6 0

You will have $310 in your account after 42 weeks.

Step-by-step explanation:

Graduation present = $100

Amount deposited per week = $5

Let, x be the number of weeks, therefore, the function is

f(x) = 100+5x   Eqn 1

We will put f(x)=310 in Eqn 1 to find number of weeks.

310=100+5x\\310-100=5x\\210=5x\\5x=210\\

Dividing both sides by 5

\frac{5x}{5}=\frac{210}{5}\\x=42

You will have $310 in your account after 42 weeks.

Keywords: function, division

Learn more about functions at:

  • brainly.com/question/846474
  • brainly.com/question/8520610

#LearnwithBrainly

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