10. A(2, 3), B(2,9), C(6, 6), D(8,5), E(8, 11), F(12, 8)
olga nikolaevna [1]
I can’t see the picture so can you put it up
B. Multiply the top equation by 3
-2y will turn into -6y and the y's will cancel out
Answer:
4 pizzas for 10
Step-by-step explanation:
Divide the prices by the number of pizzas and you will get the prices per pizza.
2.50$ per pizza for 4
2.75$ per pizza for 7
Standard form for equations is ax + by = c. So all we have to do is transfer this equation into standard form. But, in standard form, there can also be no denominators, so our first step is to multiply each side of the equation by 5 to get rid of all denominators. The equation becomes 5y = 3x + 20. Now we need to get 20 on one side, which we can do by subtracting 3x from each side. The equation becomes -3x + 5y = 20, giving us our final answer of -3x + 5y = 20.
