Answer
2.01
Work Step by Step
First, we simplify the expression:
$3.4x-1.9x+5.2x$
=$1.5x+5.2x$
=$6.7x$
We evaluate the expression by substituting the value of $x=0.3$ into the expression,
$6.7x$
=$6.7(0.3)$
=$\frac{67}{10}\times\frac{3}{10}$
=$\frac{67\times3}{10\times10}$
=$\frac{201}{100}$
=$2.01$
