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21. When Brooke buys lunch at the cafeteria,
money is withdrawn from a lunch account.
The table shows amounts withdrawn in
one week. By how much did the amount in
Brooke's lunch account change by the end
of that week?
25.

21 When Brooke buys lunch at the cafeteria money is withdrawn from a lunch account The table shows amounts withdrawn in one week By how much did the amount in B class=

Respuesta :

ElectricProgramer

Answer:

The amount in Brooke's lunch account changed by negative $20 dollars by the end of the week.

Step-by-step explanation:

First, let's look at what we know. Each day, she spends 4 dollars on lunch. In a school week, there are 5 days. With this info, we know that she spent 4 * 5 = $20 at the end of the week in total.

If her balance was $28 dollars at the start of the week, and she spends $20, then she has 28 - 20 = $8 dollars left at the end of the week.

Answer:

The amount in Brooke's lunch account change by the end  of that week is $-20 or $20 decrease.

Step-by-step explanation:

Consider the provided information.

Each day Brooke buys lunch and withdrawn the same amount i.e $4.

The number of days are 5.

To calculate the change by the end  of that week, find the total amount withdrawn in 5 days.

To represent withdrawn use a negative sign.

[tex]5(-4)[/tex]

The product of the numbers will be a negative number as they have opposite sign.

[tex]5(-4)=-20[/tex]

Hence, the amount in Brooke's lunch account change by the end  of that week is $-20 or $20 decrease.

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