Find each percent of change. Round answers to the nearest tenth, if necessary.

1. 75 is decreased to 60.

2. 10 is increased to 35.

Question

Find each percent of change. Round answers to the nearest tenth, if necessary.

1. 75 is decreased to 60. 

2. 10 is increased to 35.

jdoe0001 · Answer

$\bf \begin{array}{llll}
quantity&percentage\
\hline\
75&100\
60&x
\end{array}\implies \cfrac{75}{60}=\cfrac{100}{x}$

do the same for the other

mathmale · Answer

When we speak of "percentage change," we're comparing the CHANGE to the original value of the quantity.  If 75 decreases to 60, the CHANGE is 60-75, or -15.  
The percentage change is then [(-15)/75]*100%.

Calculate that.

Likewise, if 10 is increased to 35, the change to the original quantity (10) is 35 - 10, or 25.  Find the percentage change by dividing 25 by 10 and multiplying the result by 100%.

Try it.

anonymous · Answer

@mathmale So what is the answer to both?

jdoe0001 · Answer

solve by "x"