How many ounces of iodine worth 80 cents an ounce must be mixed with 50 ounces of iodine worth 48 cents an ounce so that the mixture can be sold for 60 cents an ounce?

30 ounces of iodine worth 80 cents an ounce

Step-by-step explanation:

Let

x ----> ounces of iodine worth 80 cents an ounce

we know that

The ounces of iodine (x) worth 80 cents an ounce mixed with 50 ounces of iodine worth 48 cents an ounce must be equal to the mixture (x+50) worth 60 cents an ounce

The linear equation that represent this situation is

solve for x

none cuz there are no "following statements" regarding the question

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.