Marsha wrote three $15 checks and six for $75 each. which of the following expressions represents the change in her bank account?

3(-15) + 6(-75)
-3(-15) + -6(-75)
-3(15) + -6(75)
3(-15) + -6(-75)

3(-15) + 6(-75)

Step-by-step explanation:

The best expressions that represents the change in Marsha's bank account is 3(-15) + 6(-75)

Let's see first what this would amount to.

Bank Account = 3(-15) + 6(-75)

Bank Account = -45 + -450

Bank Account = -45 + -450

Bank Account = -495

This would mean that Marsha subtracted $495 from her bank account.

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: