Imani spent half of her weekly allowance playing golf. her parents gave her 4.00 for washing car. what was her weekly allowance if she had 12.00 left?

her weekly allowance= 16

Step-by-step explanation:

Imani spent half of her weekly allowance playing golf.

Let her weekly allowance be x

Imani spent x/2 playing golf.

Her parents gave her 4.00 for washing car. This means she has additional 4 .00 for washing car besides x

She has a total of x + 4

What was her weekly allowance if she had 12.00 left? This means after spending x/2 on playing golf, she still had 12.00 left from the total of (x +4)

That is

(x +4) - x/2 = 12

Taking LCM of 2 on the left hand side

2(x+4)-x =12

(2x + 8 - x)/2 =12

2x - x +8 = 12×2 = 24

x +8= 24

x = 24-8 = 16

her weekly allowance= 16

Check

16/2)+4 = 12(what she had left)

1e+27

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'.