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Mars2501 [29]
3 years ago
11

Consider the following system of equations.

Mathematics
1 answer:
Dmitrij [34]3 years ago
6 0

Answer:

C. When the equations -10x + 5y = -60 and -3x − 5y = -5 are added together, a third linear equation, -13x = -65, is formed, and it shares a common solution with the original equations.

Step-by-step explanation:

2x-y=12

-3x-5y=-5

multiply the first equation by -5

-10x +5y = -60

add the 2 equations together

-3x-5y=-5

-10x +5y = -60

-------------------------

-13x = -65

We use the addition property of equality which says adding the same thing to both sides, doesn't change the equation, so we will get the same answer as the original equation

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If the principle is $12,000 and the rate of interest is 6% (simple interest), what
Elza [17]

9514 1404 393

Answer:

  $12,720

Step-by-step explanation:

The amount is given by the formula ...

  A = P(1 +rt)

where P is the principal, invested at rate r for t years.

  A = $12,000(1 +0.06·1) = $12,720

The total amount after 1 year is $12,720.

7 0
3 years ago
Which is the completely factored form of 4x2 + 28x + 49?
Gelneren [198K]

Answer:

57+28x

Step-by-step explanation:

only this

i don't know you 4x2 or 4x+2

7 0
3 years ago
Miguel is working at the county fair. On​ Friday, he works at the concession stand. On​ Saturday, he works at the balloon dart b
Liono4ka [1.6K]

Answer:

$362.25

Step-by-step explanation:

Profit made per product :

Soft pretzel = $5.25 - $3.50 = $1.75

Candied apple = $3.50 - $1.75 = $1.75

For every 2 candied apple sold, 7 soft pretzel is sold :

If 161 sold pretzel is sold, the number of candied apple sold will be :

(161 / 7) * 2

23 *. 2 = 46 candied apple was sold

Profit made on product sold :

Soft pretzel = $1.75 * 161 = $281.75

Candied apple = $1.75 * 46 = $80.5

$(80.5 + 281.75) = $362.25

3 0
3 years ago
Please help!!
olganol [36]

Answer: I think that the answer is either 11 avocados or 9

Step-by-step explanation:

21-2.50 is 18.50

with this he can buy 9 with 15 dollars but he still has 3.50 left over

if he uses this left over change he can buy two more which would make 11.

If this is wrong I am sorry!

4 0
3 years ago
Read 2 more answers
Yes hbc7)7/67), Z a mf s
Masja [62]

Answer:

What is your question supposed to be? It's just a bunch of gibberish.

6 0
3 years ago
Read 2 more answers
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