The outdoors club members are planning some activities to do on a sunny autumn saturday. one half of the members are going hiking. one fourth of the members are bike riding. one eighth of the members are rock climbing. nine of the members are walking their dogs. how many outdoor club members are doing an activity on saturday?

72

Step-by-step explanation:

Lets say total number of Outdoor club member =

Members going for hiking =

Members going for bike riding =

Members going for rock climbing =

Member going for walking their dogs = 9

Thus,

72 Outdoor Club members are doing an activity on Saturday.

w

step-by-step explanation:

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'.