Answer:
-k-h/r-s
When solving the goal is to get x on one side and not x on the other.
rx + h = sx - k
rx - sx + h = -k <------- subtract sx from both sides
rx - sx = -k - h <-------subtract h from both sides
x (r - s) = -k -h <------factor out x which is in both rx and sx
x = - k - h / r - s <-------divide by r-s on both sides
Answer:
10
Step-by-step explanation:
He makes $10 for each job he's done
Answer:
<em>x</em> = -33.462
Step-by-step explanation:
-8.58/<em>x</em> = 3.9
<em>x</em> = 3.9 x -8.58
<em>x</em> = -33.462
Answer:
Step-by-step explanation:
The length of the pool is 4 meters more than its width
Let x and (x + 4m) represent the width and length respectively
x(x+4m) = 192 m^2
solving for x
x^2 + 4m - 192 m^2 = 0
factoring
(x+16)(x-12)=0 |OR x+=+%28-4+%2B-+28%29%2F%282%29+ using Quadratic Formula
(x+16)=0 tossing out negative solution for measure
(x-12)=0 x = 12m, the width. The length is 16m (12m+4m)
Answer:
130.5 in²
Step-by-step explanation:
The area (A) of a regular pentagon is
A = 
× perimeter × apothem
perimeter = 8.7 × 5 ← pentagon has 5 sides
= 43.5 in
A= 0.5 × 43.5 × 6 = 130.5 in²
