The Smiths want to replace the stairway that leads from their porch to their sidewalk with a ramp. The porch is 3 feet off the ground. They decide to start the ramp 12 feet away from the base of the porch to make it convenient to walk up. The ramp will be approximately
feet long.

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:

4.5%

step-by-step explanation:

it is 10.6 according to my calculations