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iVinArrow [24]
4 years ago
13

How many solutions does this system have? 12x+9y=-36 4x+3y=-12

Mathematics
2 answers:
mel-nik [20]4 years ago
4 0

Answer:

Infinit solutions

Step-by-step explanation:

amid [387]4 years ago
3 0

Answer:

C infinitely many solutions

Step-by-step explanation:

multiply second equation by -3

-3 × (4x + 3y) = -12 ➡ -12x - 9y = 36 now add this to second equation

12x + 9y -12x -9y = -36 + 36 ➡0 = 0

we say there's infinite solutions because whatever value you write for x and/or y there will be a solution.

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Step-by-step explanation:

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3 years ago
What is the slope of the line whose equation is –48 = 2x − 8y?
alexgriva [62]
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Read 2 more answers
Annie's cafe borrows $6100 at 6% for 290 days. Find the total amount that must be repaid after 290 days. (Use a 365 day year.)
Galina-37 [17]
Given:
amount borrowed $6,100
interest rate 6% - assuming annual interest rate
term - 290 days of a 365 day year.

This is a simple interest computation.

Interest = Principal * interest rate * term
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Total payment at the end of the 290 term would be $6,390.79. 

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8 0
3 years ago
A had $360 more than B. When A spent $144 and B spent half of his money, A had 6 times as much money as B, Find the ratio of the
Karolina [17]

Answer:

13:3

Step-by-step explanation:

A=x B=y

first; x= 360+y

later;x= 216+y

A:B

216+y: 1/2y = 6: 1

216+y/y÷2 =6/1

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first; x =360+y

360 +108

468

A:B = 468:108

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3 0
3 years ago
Please help me solve these!!!
Marat540 [252]

Answer:

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Step-by-step explanation:

Maybe pay attention next time.

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