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Burka [1]
3 years ago
13

−2x − y = 3 −9x − y = 17

Mathematics
2 answers:
Makovka662 [10]3 years ago
8 0

Answer:

-2,1)

Step-by-step explanation:

ad-work [718]3 years ago
6 0
Answer: (-2,1) here’s the work

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A started some business with RS 26,000. After 3 month B joined him with Rs. 16,000. After some more time C joined them with Rs.
viktelen [127]

Answer:

3  months

Step-by-step explanation:

<h2><u>A:</u></h2>

We know that the total investment period is 1 year, then since A started, A invested Rs 26,000.

<u>Now, since A has been working for 12 months, this is where the effective investment comes in:</u>

A effective investment = Rs 312,000

<h2><u>B:</u></h2>

<u>Then after 3 months, B joined, so:</u>

12 months - 3 months = 9 months in work

B overall invested = Rs 16,000

<u>Since B only worked nine months, we use that to find effective investment:</u>

B effective investment = Rs 144,000

<h2>C:</h2>

<u>C joined x months since B joined in:</u>

<u>We don't know how much C worked for, but we know that C joined after B:</u>

C investment period = 9 months - x certain amount of months

We know that C's investment is Rs 25,000

<u>Find effective investment:</u>

<u>Rs 25,000 * ( 9 - x ) = Rs 225,000 - 25,000x then to find the total investment:</u>

<u></u>

<u>Add all effective investment:</u>

Rs 312,000 + Rs 144,000 + Rs 225,000 - 25,000x

= Rs 681000 - 25,000x

We now know that C's investment is 225,000 - 25,000x

<u>Find profit share:</u> 225,000 - 25,000x

==> Rs 3,825

<u>The total profit:</u>

Rs 15,453

<u>To get our final answer, we must do this operation:</u>

<u>C investment divided by Total Investment = C's profit and total profit:</u>

( Rs 225,000 - 25,000x) ÷ ( Rs 681,000 - 25,000x ) = Rs 3,825 / Rs 15,453

25 ( Rs 9,000 - 1,000x)/(Rs 681,000 - 25,000x)  = (153 * 25) /(153 * 101)

( Rs 9,000 - 1,000x ) ÷ ( Rs 681,000 - 25,000x ) = 1 / 101

Rs 909,000 - 101,000x = Rs 681,000 - 25,000x

Rs 228,000 = 76,000x

Rs 228 = 76x

x = 3

8 0
4 years ago
The formula to convert degrees Fahrenheit degrees Celsius is C = (F - 32) Which formula can be used to convert degrees Celsius t
cupoosta [38]

Answer:

(°C×9/5)+32= 32°F is the answer

3 0
3 years ago
Use the substitution method to solve the system of equations
xeze [42]

Answer:

(12,14)

Step-by-step explanation:

9x-3(3x-4)=14

9x-9x+12=14

12=14

7 0
3 years ago
Solve for x (x-6)^2-5=0
WITCHER [35]

Answer:

x=6+√5 or x=6−√5

8 0
3 years ago
Read 2 more answers
I need help please anyone solve it
kodGreya [7K]
1. (a) 13
1. (b) 21

2. (a) (3 + 4) • 10 / 2
2. (b) uhh i'm not sure if the expression got typo'd but im guessing it's 15 + 10 • (8 / 4)
5 0
3 years ago
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