Answer:
about 44 jumps per minute
Step-by-step explanation:
350/8=43.75
Answer:
2
Step-by-step explanation:
x=4 and y=2
It is 2/3 of whole collection
then it is 3/5 of the 2/3
therefore she heard 3/5 of music in 2/3 of her collection
=3/5×2/5
=6/25
Your equation is presented in by the following formula of y = mx + b
m = slope, it is the coefficient of X
y = 4/5 X - 3
m = 4/5
Answer:
Step-by-step explanation:
![\frac{3}{x+3}-\frac{4}{x-3}=\frac{3*(x-3)}{(x+3)(x-3)}-\frac{4(x+3)}{(x-3)(x+3)}\\\\=\frac{3*x-3*3}{(x+3)(x-3)}-\frac{4*x+4*3}{(x+3)(x-3)}\\\\=\frac{3x-9}{x^{2}-3^{2}}-\frac{4x+12}{x^{2}-3^{2}}\\\\=\frac{3x - 9 -(4x + 12)}{x^{2}-3^{2}}\\\\=\frac{3x-9-4x-12}{x^{2}-9}\\\\=\frac{-x-21}{x^{2}-9}\\\\](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7Bx%2B3%7D-%5Cfrac%7B4%7D%7Bx-3%7D%3D%5Cfrac%7B3%2A%28x-3%29%7D%7B%28x%2B3%29%28x-3%29%7D-%5Cfrac%7B4%28x%2B3%29%7D%7B%28x-3%29%28x%2B3%29%7D%5C%5C%5C%5C%3D%5Cfrac%7B3%2Ax-3%2A3%7D%7B%28x%2B3%29%28x-3%29%7D-%5Cfrac%7B4%2Ax%2B4%2A3%7D%7B%28x%2B3%29%28x-3%29%7D%5C%5C%5C%5C%3D%5Cfrac%7B3x-9%7D%7Bx%5E%7B2%7D-3%5E%7B2%7D%7D-%5Cfrac%7B4x%2B12%7D%7Bx%5E%7B2%7D-3%5E%7B2%7D%7D%5C%5C%5C%5C%3D%5Cfrac%7B3x%20-%209%20-%284x%20%2B%2012%29%7D%7Bx%5E%7B2%7D-3%5E%7B2%7D%7D%5C%5C%5C%5C%3D%5Cfrac%7B3x-9-4x-12%7D%7Bx%5E%7B2%7D-9%7D%5C%5C%5C%5C%3D%5Cfrac%7B-x-21%7D%7Bx%5E%7B2%7D-9%7D%5C%5C%5C%5C)
![\frac{3}{x+3}-\frac{4}{x-3}=\frac{5x}{x^{2}-9}\\\\\frac{-x-21}{x^{2}-9}=\frac{5x}{x^{2}-9}\\\\-x-21=\frac{5x}{(x^{2}-9)}*(x^{2}-9)\\](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7Bx%2B3%7D-%5Cfrac%7B4%7D%7Bx-3%7D%3D%5Cfrac%7B5x%7D%7Bx%5E%7B2%7D-9%7D%5C%5C%5C%5C%5Cfrac%7B-x-21%7D%7Bx%5E%7B2%7D-9%7D%3D%5Cfrac%7B5x%7D%7Bx%5E%7B2%7D-9%7D%5C%5C%5C%5C-x-21%3D%5Cfrac%7B5x%7D%7B%28x%5E%7B2%7D-9%29%7D%2A%28x%5E%7B2%7D-9%29%5C%5C)
-x - 21 = 5x
Add 'x' to both sides
-x -21 +x = 5x + x
-21 = 6x
6x = -21
x = -21/6
= -7/2
x = -3.5