Xio just took a math test with 25 questions, each worth an equal number of points. the test is worth 100 points total. if a score of 83 points earns a grade of b, how many questions would xio need to get right to get a b on the test?

So, Xio wants a B for his math test.

Well, each question is worth 4 points

You divide 83 by 4 which will equal 20.75. (Round up)

If he wants the B for his math test, Xio will need to get 21 questions correct.

Hope I helped!

after simplifying it i got: -36.25 as my answer. hope that !

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'.