Question

A. Seven burgers and eight pizzas cost 3780 while
twelve burgers and five pizzas cost 1945. Find the
cost of each pizza.
(A) 360 (B) 140
(CY 345
(D) 50​

Answer 1

Answer:

use of linear equation

Step-by-step explanation:

let number of pizzas be y and let the number of burgers be x

according to first condition

7x + 8y = 3780

12x + 5y = 1945

now solve simultaneously by multiply equation 1 and 2 by 5 and 8 respectively and subract