15. Doug Upp can shovel coal at the rate of 16 tons per day. His brother, Sid, can e rate of 16 tons per day. His brother, Sid, can shovel 10 tons per day.

a) Define a variable for the number of days Doug has shoveled. Then write an expres

umber of days Doug has shoveled. Then write an expression for the number of

tons Doug has shoveled. X=# days

b)

Three days later, Sid joins Doug, and both shovel together. Write an expression for the num

days Sid has been shoveling in terms of your variable in part a. Then write an expression for the

number of tons Sid has shoveled.

C) Write an equation stating that the total number of tons Doug and Sid have shoveled is 100. Then

solve the equation to find out how many days Doug dug when they have shoveled this much coal.

tigers

step-by-step explanation:

cougars 12/10 (12-10 = 2)

bobcats 20/10 (20-10 =10)

bulldogs 8/5 (8-5 =3)

tigers 3/5 (3-5 =-2)

whats the

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'.

∠cbe and ∠deb are same-side interior angles.

i took the test