Rina walked 3 upon 7 km on monday and 2 upon 5 km on tuesday. how many kilometres did rina walk on the two days?

or ~0.83km

Step-by-step explanation:

make the denominators the same in order to find total in addition

3 • 5 = 15

7 • 5 = 35

2 • 7 = 14

5 • 7 = 35

or ~0.83km

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: