Frank’s quarter grades are 82.5, 94.7, and 87.9. what grade, rounded to the nearest percent, will frank have to earn in the last quarter to receive at least a 89% final course grade?

Sorry I just wanted to say that this was so long ago hehe

Step-by-step explanation:

its kinda sad .-.

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: