Evaluate function expressions 3•f(-4)- 3•g(-2)
2 answers:
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Answer:
Step-by-step explanation:
Given:
Teresa has $451 in a personal bank account,and then withdraws $10 per week.
Andrew has $10 in a personal bank account,and then deposits $53 each week.
To find:
After how many weeks will they have the same amount of money in the bank.
Solution:
Let x be the number of weeks after which they have the same amount.
Teresa has $451 in a personal bank account,and then withdraws $10 per week. So, the amount in Teresa's account is:
Andrew has $10 in a personal bank account,and then deposits $53 each week. So, the amount in his account is:
They have equal amount after x weeks. So,
Isolate variable terms.
Divide both sides by 63.
Therefore, they will have the same amount of money in the bank after 7 weeks.