Mr. K, his wife (Mrs. K), and their daughter (Jocelyn) went to Zionsville this past weekend for Jocelyn's first dance competition of the year. The Zionsville band had a concession stand where they were selling slices of pizza for $3 each and Chick-Fil-a sandwiches for $6 each. Drinks were $1.50. After buying each of the 12 dancers either a slice of pizza or a chicken sandwich AND a drink, Mr. K spent $72. How many chicken sandwiches and slices of pizza did Mr. K buy?

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.

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.