Mathematics, 11.06.2020 18:57 joshWash

Anne, Becky and Charlotte had sums of money in the ratio 7:6:5. One of them gave £9 to one of the others and this changed the ratio (in the same order of names) to 6:5:4. The total sum of money remained the same; what was it?

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 20.06.2019 18:04, brendanhein1

Tina practice piano for 15 hours last month and 45 hours this month use multiplication to write a statement comparing me i was tina practice during the two months use addition to write a statement comparing the hours tina practice during the two months

Answers: 1

continue

Mathematics, 21.06.2019 21:40, avahrider1

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

Answers: 3

continue

Mathematics, 21.06.2019 21:50, jadea520

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

Answers: 1

continue

Mathematics, 22.06.2019 02:20, officialrogerfp3gf2s

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test

Answers: 2

continue

You know the right answer?

Anne, Becky and Charlotte had sums of money in the ratio 7:6:5. One of them gave £9 to one of the ot...