math and statistics

Question 83670 asked on 2011-08-17 13:32:17

You saw a T-Shirt of R97, since you don’t have cash you borrow R50 from your dad and R50 from your mom. Now you have a R100. You purchase a T-Shirt for R97 and are left with R3 change. You return R1 to your dad and R1 to your mom and keep the R1 for yourself.Now you owe your mom R49 and your dad R49.Added together (R49 +R49 = R98) plus your R1 will = R99.  Where is the missing R1???

Question 83707 asked on 2011-08-19 12:53:07

how much money do i need for gas to go to regina sask and back to edmonton alberta?

Question 83856 asked on 2011-08-27 13:25:14

how many troy ounces to a standard ounce?

Question 84120 asked on 2011-09-08 17:34:26

Jennas sixth-grade class is taking a bus to the zoo. the bus travels an average of 55 mi/h, about how long will it take the class to get to the zoo? hint: use compatible numbers

Question 84297 asked on 2011-09-16 09:33:21

how long is a lineal foot

Question 84684 asked on 2011-10-03 12:26:32

how many litres are there in 1 imperial gallon

Question 84915 asked on 2011-10-15 16:05:12

Are there websites similar to dictionary.com or reference.com http://www.reference.com/motif/Health/ in the highschool math area? I would like to find as many websites as possible that provides math mental calculation practice. The preprofessional exams that I have to write: GRE, GMAT, DAT, and etc. Tests math aptitude and math mental calculation speed at the highschool math level. My problem is that I have a high math I.Q. But I have been dependent on the calculator throughout my education. I want to find on the internet techniques and questions to practice fast mental math (at highschool level).

Question 85592 asked on 2011-11-21 13:36:45

Math Question: A standard combination lock has 60 numbers on its face from 0 to 59. A combination consists of three numbers, and numbers can be repeated. What is the total number of possible combinations? Express as a power and then evaluate.

Question 86732 asked on 2012-01-22 00:33:18

how many rational numbers are there between 1 and 5?

Question 86972 asked on 2012-01-30 19:38:06

What is the distance between the earth and the moon?

Question 86999 asked on 2012-01-31 18:41:17

cindy jogs1.8 miles on mondays,thursdays and on saturdays .How many miles per week does cindy jog?

Question 87029 asked on 2012-02-01 18:38:09

A family is moving and has a number of electronic devices in the same packing crate. One of the devices beeps every 8 minutes, another device beeps every 10 minutes, and a third device beeps every 12 minutes. If all the devices beeped together at 3:00 pm, what time will it be when they all beep together next?

Question 87244 asked on 2012-02-09 04:31:57

If a to the power 3 plus b to the power3=91 asquare+bsquqre=25 find value of a and b.