Question

I need helpWith this problemFor my grandson. I did get some help but need more. Thank you!

Answer 1

Step 1:

Percent is part of 100.

Step 2

First part:

60 units split into 80% and 20%

`\begin{gathered} 80\text{ \% of 60 units = }(80)/(100)\text{ }*60\text{ = 48} \\ 20\text{ \% = 12} \end{gathered}`

Second part

12 units = 40 %

`\begin{gathered} 40\text{ \% = 12 units } \\ 60\text{ \% = }(60*12)/(40)\text{ = 18 units} \end{gathered}`

Third part

30 % = 18 units

`\begin{gathered} 30\text{ \% = 18 units} \\ 70\text{ \% = }\frac{18\text{ }*\text{ 70}}{30}\text{ = 42 units} \end{gathered}`

Fourth part

75 % = 42 units

`\begin{gathered} 75\text{ \% = 42 units} \\ 25\text{ \% = }\frac{25\text{ }*\text{ 42}}{75}\text{ = 14 units} \end{gathered}`

Final answer

14 + 42 = 56 units

The length of the bottom diagram = 56 units