Answer:
0.67x mg
Step-by-step explanation:
expression that could represent the amount of sodium per serving, in milligrams, in the new soup recipe
33% less than the old
old contains x mg
new soup: x - 33%x = x - 33/100x = x - 0.33x = 0.67x mg
67%x mg
A
A square matrix is invertible if its determinant is not zero.
The determinant for this matrix is
so it does not have an inverse because its determinant is zero.
A response variable you are trying to measure once you've done the experiment.
What have you done? You've measured what sunglasses will do to affect eyesight. You have used a 10 week period to measure their response. You don't really care what the response is -- only if there is one.
10 people and 10 weeks don't change. Those two are not a choice for an answer. Now you come to the crunch of the question. Is it the sunglasses you are trying to measure or is it what your eyes have done because you were wearing sun glasses.
So we need an answer. If you say sun glasses, how did you measure what they did. THAT's the answer. The answer is not the sunglasses.
-(4-5)(3+1)
-(12+4-15-5)
-(16-20)
-16+20
4
... not enough information to answer
