Write 9/12 as a sum of unit fractions

Step-by-step explanation:

The unit fractions have a one in the numerator, in this case we need two unit fractions that when we sum them we get 9/12.

I will use the fractions 1/2 and 1/4, because when we sum them we get:

the result is the that we are asked for.

step-by-step explanation:

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: