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21. Carrie withdraws $10 from her account each day for 7 days.
a. What integer represents the total change in her account balance?
b. Her bank account had $120 in it before she began withdrawing money. What is her
balance after withdrawing the money for 7 days?​

Respuesta :

Answer:

a.70. b.50

Step-by-step explanation:

  • If Cartie takes $10 from her account for 7 days she would have taken $70 out.

[tex]7 \times 10 = 70[/tex]

  • Next we look at the net problem it is asking us how much is left we already know from the equation above that we need to subtract 70 from 120
  • [tex]70 - 120 = 50 [/tex]
  • We now have both answers A. being that she would have taken $70 in total out of her account and B. being that she would have $50 left in her account.

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