Select all that apply.

1 answer:

3 0

First we need to have same units before comparing them. That is, either both of them are in cm or both of them are in mm. So if we need to convert 12.5 cm to mm, we know that 1 cm =10 mm. So we have to find out how many mm are in 12.5 cm. And let 12.5 cm =x mm. So to find the value of x , we set a proportion and solve for x. That is

$\frac{1cm}{10mm}=\frac{12.5cm}{x mm}$

The units cancel out and we do cross multiplication. That is

$1*x =12.5*10$

x=125

So 12.5 cm =125 mm. Therefore the correct proportion is C.

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pochemuha

Answer:

The correct answer option is 'both Adler and Erika solved for k correctly because either the addition property of equality or the subtraction property of equality can be used to solve for k'.

Step-by-step explanation:

Both Adler and Erika have solved for k correctly since both the properties, addition property of equality and subtraction property of equality, can be to solve for k.

The fraction $\frac{1}{2}$ has to be subtracted from both the sides so even if it is added, the negative sign still would make it subtracted from both the sides.