Question

Pour subtracted from the product of 10 and a number is at most-20,

Answer 1

we have

four subtracted from the product of 10 and a number is at most-20

Let

n ----> the number

so

`10n-4\leq-20`

solve for n

`\begin{gathered} 10n\leq-20+4 \\ 10n\leq-16 \\ n\leq-1.6 \end{gathered}`

the solution for n is the interval (-infinite, -1.6]

All real numbers less than or equal to negative 1.6