The lunch choices last Friday were mushroom or pepperoni pizza. The cafeteria made 20 mushroom pizzas and 80 pepperoni pizzas. What percentage of the pizzas were mushroom pizzas?

20%

Step-by-step explanation:

in total there 100 pizzas each one is a percent and there are 20 mushroom so 20% is answer.

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: