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Artyom0805 [142]
3 years ago
7

Carla owes $3,760 on her Electronics Boutique credit card with a 22.4% interest rate. She owes $3,124 on her Miscellaneous Goods

credit cards which has a 18.7% interest rate. What is the total monthly payment needed to pay off both cards in three years, assuming she makes fixed payments and does not charge any more purchases with the card?
Question 4 options:

1)
$251.30


2)
$258.42


3)
$191.22


4)
$264.33
Mathematics
1 answer:
Alex3 years ago
5 0
Answer choice number 2 is correct. 
All I did to get the answer on this question was add 114.04+144.38 and that gave me a total of 258.42

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How to solve the system of equations algebraically for all values of x, y, and z
stich3 [128]
4x -3y + z = -10...............(1)
2x +y + 3z =  0...............(2)
-x +2y - 5z = 17...............(3)

First we multiply 3*(2) and add it to (1) 
6x +3y +9z =0..................+(1)..................> 10x + 10z = -10......(4)

Then we multiply -2*(2) and add it to (3) 
-4x -2y -6z =0 ...................+(3)................> -5x -11z = 17...........(5)

Multiply  2*(5) and add it to (4)
-10x -22z = 34...................+(4).................> -12 z = 24 ..............>>> z = -2

Substitute z in (4)............> 10x +10(-2) = -10.............................>>> x = 1

Substitute x and z in (2).....> 2(1) +y + 3(-2) =  0..................>>> y = 4

Solution (x,y,z) = (1,4,-2)

4 0
3 years ago
frank, joe and carl went with their Grandma to the bakery. she said that they could use the change she got back to buy mini-chip
balu736 [363]

Answer:

3

Step-by-step explanation:

First, multiply the bread cost 2.70 by 2, getting you 5.40.

Next, add 11 for the cost of the caketo 5.40 getting you 16.40

Subtract 16.40 from 20 to get how much money you get for the cookies, getting you 3.60

Divide 3.60 by 3 to find how much money each boy gets, getting you 1.20

Divide 1.20 by .40 to get the number of cookies each boy gets, getting you 3

8 0
4 years ago
Please look at photo for question.
ElenaW [278]
Here you go!!! Hope this helps

4 0
3 years ago
6x+9/x-5 x is not equal to 5 find inverse
algol [13]
You have f(x)=(<span>6x+9)/(x-5) and want to find the inverse function?  Please note that the parentheses are obligatory here.

1.  Replace "f(x)" with y:   y = </span>(6x+9)/(x-5)
<span>
2.  Interchange the variables x and y:     x</span> = (6y+9)/(y-5)

3.  Solve this result for y:     x(y-5) = (6y+9), or xy-5x = 6y+9.  Then:
                                                             
                                            xy-6y = 9 + 5x, or y(x-6) = 9+5x
                                                             9+5x
                     Then                      y = --------------                       
                                                             x-6

Here x may not = 6, because division by zero would occur otherwise.
3 0
3 years ago
Sarah bought a new lip gloss. It cost $8.99 plus 5% tax. How much did she pay for the lip<br> gloss?
Alexxandr [17]

Answer:

9.4395

Step-by-step explanation:

5% of 8.99= 0.4495

cost of lip gloss8.99

$8.99+$0.4495=$9.4395

4 0
2 years ago
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