Mr. white ordered pizza for the party. medium pizzas have 8 slices and large pizzas have 10. if there are 13 pizzas and 108 slices, how many medium pizzas are there?

Let x and y be the number of medium and large pizzas respectively. Therefore,
x+y = 13 (1)
8x+10y = 108 (2)

Solving (1) and (2)

From (1), x = 13 -y

Substituting in (2)

8(13-y)+10y = 108
104 - 8y +10 y =108
2y = 4 => y = 2
And then,
x= 13-y => 13 - 2 = 11

Therefore, there are 11 medium pizzas

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!