Question

The function A(n)=200−7n represents the number of dollars left in your bank account after purchasing n lattes at your favorite coffee shop. Use A(n) to determine how many dollars you will have in your account after you purchase 5 lattes.

A) $165
B) $1650
C) $1653
D) $173

Answer 1

Option A). After substituting n with 5 in the function A(n) = 200 - 7n, the calculation shows that there will be $165 left in the account, corresponding to option A).

Step-by-step explanation:

The function given is A(n) = 200 - 7n, which represents the amount of money left in an account after purchasing n lattes. To find out how much money will be left after purchasing 5 lattes, we substitute n with 5:

A(5) = 200 - 7(5)

A(5) = 200 - 35

A(5) = $165

Therefore, after purchasing 5 lattes, there will be $165 left in the account. Hence, option A) is the correct answer.