Question

Answer the following question using the data x + 2y = 30, 2x + 4y = 66.

3. Draw the rough diagram of above lines.

4. Write the number of solutions of given system of equations ?

5. What is meant by consistant.

6. Write the symbolic form of “5 pencils and 7 pens together cost Rs.50”.​

Answer 1

Step-by-step explanation:

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2nd question answer

let eq1=X+2y=30

eq2=2x+4y=66

now multiply eq1 with eq2

5th question answer

not containing any logical contradiction

6th question answer

5x+7y=50