Question

7 burgers and 8 pizzas cost ₹780 while 12 burgers and 5 pizzas cost ₹945 find the cost of each pizza

Answer 1

Answer: 286 is the cost of each pizza

I hope it is right

Explanation: first divided 780 by 8

Ur ans will come 97

Then divide 945 by 5

Ans will come 286

Then add 286 & 97

Ur ans will be 286

Answer 2

Answer:

The final answer is 45.

Step-by-step explanation:

Given,

7 burgers and 8 pizzas cost 780.

12 burgers and 5 pizzas cost 945.

We need to find the cost of one pizza.

Let x be the cost of one burger and y be the cost of one pizza.

7x + 8y = 780    - 1)

12x + 5y = 945  - 2)

Multiply first equation with 12 and second with 7 then we will get,

84x + 96y = 9360

84x + 35y = 6615

Subtracting 2 from 1

84x + 96y = 9360

- 84x - 35y = - 6615

61y = 2745

y = 2745 / 61

y = 45  

What is a linear equation

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