Ascientist has two solutions, which she has labeled solution a and solution b. each contains salt. she knows that solution a is 30% salt and solution b is 55%
salt. she wants to obtain 120 ounces of a mixture that is 40% salt. how many ounces of each solution should she use?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is