There are 10less trumpet players than saxophone players the number of saxophone players is 3times the number of trumpet players .how many trumpet players are there

5 trumpet players

let s represent saxophone players and t trumpet players

thus t = s - 10 → ( 10 less than saxophone players)

also s = 3t = 3( s - 10)

solve s = 3( s - 10)

s = 3s - 30

subtract s from both sides of the equation

0 = 3s - s - 30

0 = 2s - 30

add 30 to both sides

30 = 2s

divide both sides by 2

= s ⇒ s = 15

number of trumpet players = 15 - 10 = 5

d i think

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'.