I believe it’s positive 3 because I thought the postive integer would be the same number as the negative integer
Answer:
Mr K purchased 6 chicken sandwiches and 6 pizza slices.
Step-by-step explanation:
Let Mr. K purchased number of chicken sandwiches = x
and number of pizza slices = y
Since total number of dancers = 12
then the equation will be
x + y = 12 --------(1)
Mr K. spent total amount = $72
Therefore, equation to purchase x sandwiches, y pizza slices and 12 drinks will be
6x + 3y + 1.5×(12) = 72
6x + 3y + 18 = 72
6x + 3y = 54
2x + y = 18 -------(2)
We subtract equation (1) from (2)
(2x + y) - (x + y) = 18 - 12
x = 6
from equation (1)
6 + y = 12
y = 6
Therefore, Mr K purchase 6 chicken sandwiches, 6 pizza slices.
Comp outdo resolve y veinte y cinco
Answer:
multiply one or both of the equations until a variable can cancel out
