Answer:
Pythagorean theorem
Step-by-step explanation:
hope this helps
Answer: cheese pizzas = 25 , Pepperoni pizzas = 15
Step-by-step explanation:
Let x = Number of cheese pizzas, y = Number of pepperoni pizzas.
As per given,

Multiply 7 on both sides of (i), we get

Eliminate (iii) from (ii), we get

Put value of y in (i) , 
Hence, cheese pizzas = 25 , Pepperoni pizzas = 15
X + 2y = -6
2y = -x - 6
y = (-x - 6)/2
answer is D. Last one
y = (-x - 6) / 2
Answer:
x=8
Step-by-step explanation:
normally it would be 2x-1=
x+9 so now we have to combine the x into one fraction which will be 2x-1=
+9 now for my way i will be taking the -1 to the other side and when that happens its going to become positive so now the answer will be 2x=
+10 ok so now we have to have the x's to the same side so i have to drag the fraction to the other side and making it positive which will conclude into 1.25x=10 and now 10 divided by 1.25 is 8 so the answer is x=8 (sorry for the ok nows) hope this helped