Answer:
x = -13/5
Step-by-step explanation:
let x be the number
8x + 6 = 3x - 7
move variables to left and numbers to right
8x - 3x = - 7 -6
5x = -13
x = -13/5
Then a is Half of 45 wich is 22.5 I believe.
Step-by-step explanation:
the question is z²=1
taking square root on both sides
√z² = √1
the square root and the square cancel out each other
it gives
z=±1
that means either z=+1 or z=-1
so the solutions are 1 and -1
Answer:
Step-by-step explanation:
There are 15 pens and (34 - 15), or 19, pencils.
Then the desired ratio is 19/15.
Step-by-step explanation:
Hi... Your answer is 3 units