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Fittoniya [83]
3 years ago
14

Find the solution of the system of equations.- 3x + 10y = 173x + 7y = 17​

Mathematics
2 answers:
anastassius [24]3 years ago
8 0

Answer:

x=1,y=2

Step-by-step explanation:

Given :

- 3x + 10y = 17           equation 1

3x + 7y = 17               equation 2

Adding the equation 1 and equation 2

                      - 3x + 10y+(3x+7y) = 17+17\\\\-3x+10y+3x+7y=34\\\\10y+7y=34\\\\17y=34\\\\y=\frac{34}{17}\\\\ y=2

Putting the value of 'y' in equation 2

                      3x + 7y =17\\3x + 7(2) = 17\\3x+14=17\\3x=17-14\\3x=3\\x=1

So, the value are x=1,y=2

atroni [7]3 years ago
5 0

Answer:

x=1, y=2. (1, 2).

Step-by-step explanation:

-3x+10y=17

3x+7y=17

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

17y=34

y=34/17

y=2

3x+7(2)=17

3x+14=17

3x=17-14

3x=3

x=3/3

x=1

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Step-by-step explanation:

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Answer:

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2 years ago
4. If u = {1,2,3,....10) A = { odd numbers up to 9} B = {numbers less than 7). Write out the members of the following sets: (i)
icang [17]

Answer:

i. {1,2,3,4,5,6,7,9}

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Step-by-step explanation:

U= {1,2,3,4,5,6,7,8,9,10}

A= {1,3,5,7,9}

B= {1,2,3,4,5,6}

A U B = {1,2,3,4,5,6,7,9}

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A (prime) U B =

A(prime)= {2,4,6,8,10}

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Answer:

No, \frac{4}{5} is greater than \frac{12}{50}.

Step-by-step explanation:

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\frac{12}{50} and  \frac{4}{5}

Now, in order to compare them, we need to make the denominator same for both the fractions and then compare their numerators.

LCD of 50 and 5 is 100. So, we try to make each denominator 100 and change the numerator accordingly.

We multiply the first fraction by \frac{2}{2} and we multiply the second fraction by \frac{20}{20} as given below:

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Now, the two new fractions are \frac{24}{100} and \frac{80}{100}.

Now, we check the numerators. The numerator that is larger among the two has the greater fraction value.

Here, 80 is greater than 24. So, fraction \frac{80}{100} is greater than \frac{24}{100} or \frac{4}{5} is greater than \frac{12}{50}.

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