Question

PLEASE HELP I DONT KNOW HOW TO DO THIS D: i will give brainliest

Answer 1

2.06

Step-by-step explanation:

$\footnotesize\begin{aligned}\left(2a-\frac{1}{3}\right)\div\frac{b}{15}&=\left(2\left(\frac{-2}{5}\right)-\frac{1}{3}\right)\div\left(\frac{-8.25}{15}\right)\\&=\left(\frac{-4}{5}-\frac{1}{3}\right)\div \left(\frac{-825}{1,500}\right)\\&=\left(\frac{-12-5}{15}\right)\div\left(\frac{-11}{20}\right)\\&=\left(\frac{-17}{15}\right)\div\left(\frac{-11}{20}\right)\\&=\frac{17}{15}\times\frac{20}{11}\\&=\frac{340}{165}\\&=\frac{68}{33}\\&=2\frac{2}{33}\\&\approx\bf 2.06\end{aligned}$

Answer 2

This is the work, I start by plugging in the numbers we were given. That’s my first equation, I plugged in -2/5 for A and -8.25 for B