mymathlabtutor
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
mymathlabtutor
mymathlabtutor
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
MATH SOLVE
Home
General
Solve. 0.006(9-k) + 0.09(k-4) = 1.
5 months ago
Q:
Solve. 0.006(9-k) + 0.09(k-4) = 1.
Accepted Solution
A:
$0.054-0.006k+0.09\left( k-4 \right)=1$
$0.054-0.006k+0.09k-0.36=1$
$-0.306-0.006k+0.09k=1$
$-0.306+0.084k=1$
$0.084k=1+0.306$
$0.084k=1.306$
$\begin{align*}&k=\frac{ 653 }{ 42 } \\&\begin{array} { l }k=15 \frac{ 23 }{ 42 },& k=15.5\overline{ 476190 }\end{array}\end{align*}$