The school cafeteria sells two kinds of wraps: vegetarian and chicken. The vegetarian wrap costs $1.00 and the chicken wrap costs $2.70. Today they made $119.60 from the 72 wraps sold. How many of the wraps sold were vegetarian

vegetarians= 28

chickens= 44

Step-by-step explanation:

let the number of vegetarians be x

and chickens be y

So

x+2.7y=119.61

x+y=722

from 2, x= 72-y

put x= 72-y in 1

72-y+2.7y=119.6

-y+2.7y=119.6-72

1.7y=47.6

divide both sides by 1.7

y=47.6/1.7

y=28

put y=28 in 1

x+28=72

y= 72-28

y=44

Distance formula: the distance, d, between two coordinates  and  is given bygeometric definition of a parabola:   set of points on a plane that are the same distance from a focus point and a directrix line.let be the distance between the point  and the focus point at . using the distance formula: let be the distance between the  point  and  the directrix at , which is a horizontal line. when talking about this distance between a point and a horizontal line, we only care about the vertical distance. there is a point on the horizontal line that would share the same x-coordinate. sothese two distances must be equal: if we square both sides to get rid of the square roots both sides have  and 100; if we subtract those two from both sides of the equation: so