Mr. dexter sells subscriptions to a magazine for $18 each. for each subscription he sells, he earns $8. one month, he sold $900 in subscriptions. how much did he earn?

  $400

Step-by-step explanation:

Dexter's earnings can be found using the proportion ...

  earnings/sales = $8/$18 = ??/$900

Multiplying by $900, we find ...

  ?? = $900(8/18) = $400

Dexter's earned $400 on the sales for the month.

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: