Please help. The scale factor of ^RST to ^DEC is 3:13. What is the scale factor of ^DEC to ^RST?
thanks
the reciprocal, or 13:3
think about it: if A is 2 times as big as B, B is 1/2 as big as A. Don't let weird fractions throw you.
To find the scale factor of ΔDEC to ΔRST, you need to take the reciprocal of the scale factor of ΔRST to ΔDEC. In this case, the scale factor of ΔRST to ΔDEC is 3:13.
To take the reciprocal of the scale factor, you swap the numbers and obtain the scale factor of ΔDEC to ΔRST as 13:3. Therefore, the scale factor of ΔDEC to ΔRST is 13:3.
To find the scale factor of ^DEC to ^RST, we can use the reciprocal of the given scale factor of ^RST to ^DEC.
The reciprocal of a fraction is found by swapping the numerator and denominator. In this case, the reciprocal of 3:13 is 13:3.
Therefore, the scale factor of ^DEC to ^RST is 13:3.