Friday
May 6, 2016

Posts by Maame

Total # Posts: 25

statistics
3. Fill in the blanks with the appropriate raw scores, z-scores, T-scores, and percentile ranks. Note: the Mean = 50, SD = 5. Raw z T %ile 35 1.2 35 16
September 21, 2014

Data Mangement- Math
Paula moves to an area with a different telephone exchange. Telephone numbers in the new exchange start with 753, and all combinations of the four remaining digits are equally likely. a) Calculate the probability that the last four digits in Paula’s new telephone number ...
April 21, 2013

Data Mangement- Math
Nancy lives in a subdivision where the streets are laid out in a grid pattern. Her school is six blocks south and four blocks east of her home. How many different direct routes could she take when she bicycles to school if she always stops by her friend’s home, which is ...
February 20, 2013

Derek invests \$250 per month for years at 4.8%/a compounded monthly. How much will his investment be worth at the end of the years?
May 27, 2012

i don't know , but here is the question again. Betsy inherits \$15 000 and would like to put some of it away for a down payment on a house in 8 years. If she would like to have \$25 000 for the down payment, how much of her inheritance must she invest at 9.2%/a compounded ...
May 27, 2012

Betsy inherits 1500 and would like to put some of it away for a down payment on a house in 8 years. if she would like to have 25000 for the down payment, how much of her inheritance must she invest at 9.2% a compounded quarterly
May 27, 2012

Kenny wants to invest \$250 every three months at 5.2%/a compounded quarterly. He would like to have at least \$6500 at the end of his investment.How long will he need to make regular payments?
May 27, 2012

1. Mike wants to invest money every month for 40 years. He would like to have \$1 000 000 at the end of the 40 years. For each investment option, how much does he need to invest each month? a) 10.2%/a compounded monthly b) 5.1%/a compounded monthly 2. Kenny wants to invest \$250...
May 26, 2012

MATH
Each year, Eric invests \$2500 at 8.2%/a compounded annually for 25 years. a) Calculate the value of each of the first four investments at the end of 25 years.
May 26, 2012

MAAAATTTTHHHHHH
Franco invests some money at 6.9%/a compounded annually and David invests some money at 6.9%/a compounded monthly. After 30 years, each investment is worth \$25 000. Who made the greater original investment and by how much?
May 26, 2012

MATH
PV = A( 1+i)^n =15,000(1+0.025)^-40 =\$5586.46
May 26, 2012

MATH
Rico can invest money at 10%/a compounded quarterly. He would like \$15 000 in 10 years. How much does he need to invest now?
May 26, 2012

math
Chandra borrows some money at 7.2%/a compounded annually. After 5 years, she repays \$12 033.52 for the principal and the interest. How much money did Chandra borrow?
May 24, 2012

Math
Serena wants to borrow \$15 000 and pay it back in 10 years. Interest rates are high, so the bank makes her two offers: • Option 1: Borrow the money at 10%/a compounded quarterly for the full term. • Option 2: Borrow the money at 12%/a compounded quarterly for 5 years...
May 20, 2012

Chemistry
given what you know about periodicity , predict whether lithium sulphate is more or less soluble in water than sodium sulphate
January 26, 2012

Chemistry
0.75 L of hydrogen gas is collected over water at 25 oC and 101.6. What volumme will e dry hydrogen occupy 103.3 kPa and 25 oC? What is the balanced equation and what of numbers do i use ?
January 19, 2012

Chemistry
i would be great to show me the answer , but do it step by step so i understand better
December 10, 2011

Chemistry
i don't understand
December 10, 2011

Chemistry
Suppose you are going to add 450 mL of a 0.10 mol/L hydrochloric acid solution to 250 mL of a 0.2 mol/L sodium hydroxide solution. a)Which one is the limiting reactant? b)What is the theoretical yield of sodium chloride?
December 10, 2011

Science : Chemistry
i would be great to show me the answer , but do it step by step so i understand better
December 10, 2011

Science : Chemistry
The concentration of dissolved chlorine in tap water can be determined by adding excess potassium iodide and then using aqueous sodium thiosulphate to precipitate the resulting iodide ions. In Ontario, the aesthetic objective for chlorine in tap water is a maximum ...
December 10, 2011

Chemistry
November 21, 2011

Chemistry
At 80oC, what mass of sodium chloride dissolves in 1.0L of water
November 21, 2011

Chemistry
okay, thank you, but i dont understand number two
November 21, 2011

Chemistry
1)20 mL of a saturated of potassium nitrae at 50oC. Approximately, what mass of solid will precipiatae from the solution? 2)At 80oC, what mass of sodium dissolves in 1.0L of water 3.What minimum temperature is required to dissolve 24 g of potassium nitrate in 40 g of water? is...
November 21, 2011

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