Lillian wants to ride her bicycle 23.4 miles this week. She has already ridden 12 miles. If she rides for 3 more days, write and solve an equation which can be use x, the average number of miles she would have to ride each day to meet her go

9514 1404 393

  3.8 miles

Step-by-step explanation:

Lillian wants her mileage total to be ...

  12 +3x = 23.4 . . . . an equation that can be used to find x

  4 + x = 7.8 . . . divide by 3

  x = 3.8 . . . . . . subtract 4

Lillian would have to ride an average of 3.8 miles each day to reach her goal.

i believe the answer is d.

hope it you! : d

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.