I enter the mall with 75 dollars. I spend X dollars at American Eagle, which is 4$ more than the amount I spent at Banana Republic. I also spent 15$ less at American Eagle than I spent at Cole Haan. How much money do I have left after shopping at these three stores? (Answer in terms of X .)

Respuesta :

Answer:64−3X dollars.

Step-by-step explanation:

Let's denote the amount you spent at Banana Republic as

�

B dollars. According to the given information:

You spent

�

X dollars at American Eagle, which is $4 more than the amount spent at Banana Republic, so the amount spent at American Eagle is

�

+

4

B+4 dollars.

You spent $15 less at American Eagle than at Cole Haan, so the amount spent at Cole Haan is

�

+

4

+

15

=

�

+

19

B+4+15=B+19 dollars.

Now, let's calculate the total amount spent:

Total spent

=

�

+

(

�

+

4

)

+

(

�

+

19

)

Total spent=B+(B+4)+(B+19)

Given that you entered the mall with $75:

75

−

Total spent

=

75

−

[

�

+

(

�

+

4

)

+

(

�

+

19

)

]

75−Total spent=75−[B+(B+4)+(B+19)]

Simplify the expression:

75

−

Total spent

=

75

−

(

3

�

+

23

)

75−Total spent=75−(3B+23)

Now, we want to find the remaining amount in terms of

�

X. Since

�

=

�

+

4

X=B+4, substitute

�

=

�

−

4

B=X−4 into the equation:

75

−

(

3

(

�

−

4

)

+

23

)

75−(3(X−4)+23)

Simplify further:

75

−

(

3

�

−

12

+

23

)

75−(3X−12+23)

75

−

(

3

�

+

11

)

75−(3X+11)

Now distribute the negative sign:

75

−

3

�

−

11

75−3X−11

Combine like terms:

64

−

3

�

64−3X

So, the remaining amount in terms of

�

X is

64

−

3

�

64−3X dollars.

Answer:

-3X + 64

Explanation:

Initial amount: $75

Amount spent on American eagle: $X

Amount spent on Banana Republic: $(X-4)

Amount spent on Cole Haan: $(X+15)

Amount left = $75 - [$(X) + (X-4) + (X + 15)] = 75 - [3X + 11] = -3X + 64