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 Test Calculators and Practice Answers archive Word Problems Lessons In Depth

 Question 364254: Write 42 as a product of prime factors Click here to see answer by Alan3354(30993)

 Question 364279: Simplify each complex fraction. 1/a +1/b / 2/a + 2/b Click here to see answer by Fombitz(13828)

 Question 364494: Use the properties of exponents to simplify the expression. Write the answer with positive exponents only. (x^4)^6/ (x^4)^2 4,6,4,2 are exponents Click here to see answer by Fombitz(13828)

 Question 364798: an all day parking meter only takes dimes and quarters. If it contains 100 Coins with a total value of \$14.50, how many of each type of coin are in the meter? Click here to see answer by Alan3354(30993)
 Question 364798: an all day parking meter only takes dimes and quarters. If it contains 100 Coins with a total value of \$14.50, how many of each type of coin are in the meter? Click here to see answer by josmiceli(9676)

 Question 364601: At a given time of day, the shadow of a 6 foot man is 8 feet in length. The shadow of a nearby telephone is 40 feet. How tall is the telephone pole? The answer to this question, draw and lable a diagram, set up an equation based on your diagram lables, solve, and DO A CHECK. I NEED HELP! I know it'd be hard to draw a diagram on here, but could someone please help me Click here to see answer by ankor@dixie-net.com(15650)

 Question 364984: Finding the mean and standard deviation. Let the random variable x represent the number of girls in a family of four children. Construct a table describing the probability distribution, then find the mean and standard deviation Click here to see answer by Fombitz(13828)

 Question 365019: (6.8 * 10^-6) (9.6 * 10^13) / (2 *10) (3 * 10^9) ok i already know that -6 and 13= 7 and that when you divide exponents you subtract top and bottom so 7 -9 =-2 the answer is 1.088 * 10 ^-2 i do know how -2 came about but can someone show me how the 1.088 came about because 6.8 * 9.6=65.28 /3=10.88 can anyone show me why the first part of the answer is 1.088? and not 10.88 Click here to see answer by Fombitz(13828)
 Question 365019: (6.8 * 10^-6) (9.6 * 10^13) / (2 *10) (3 * 10^9) ok i already know that -6 and 13= 7 and that when you divide exponents you subtract top and bottom so 7 -9 =-2 the answer is 1.088 * 10 ^-2 i do know how -2 came about but can someone show me how the 1.088 came about because 6.8 * 9.6=65.28 /3=10.88 can anyone show me why the first part of the answer is 1.088? and not 10.88 Click here to see answer by Alan3354(30993)

 Question 365245: What is the slope if 5x - y = -7? Click here to see answer by robertb(4012)

 Question 365201: Problem: our math class collected \$1.25 in nickles and dimes. If there is a total of 15 coins, how many coins of each kind are there? Click here to see answer by robertb(4012)

 Question 365453: The owner of a men's clothing store bought 6 belts and 8 hats for \$140. A week later at the same price , he bought 9 belts and 6 hats for \$132. Find the price of the belt and the price of the har Click here to see answer by amoresroy(333)

 Question 365466: What is the order to follow when working a math problem. For instance 5-3÷3= WHAT Click here to see answer by stanbon(57342)
 Question 365466: What is the order to follow when working a math problem. For instance 5-3÷3= WHAT Click here to see answer by Theo(3464)

 Question 365465: Use the properties of exponents to simplify the expression. Write the answer in scientific notation. (6 x 10^5) (5 x 10^-3)/8 x 10^8 x is multiply. ^ exponents. / is the fraction sign. Click here to see answer by stanbon(57342)

 Question 365602: In algebra when adding a negative number, does it mean the same thing as subtracting a positive number? Click here to see answer by ewatrrr(10682)
 Question 365602: In algebra when adding a negative number, does it mean the same thing as subtracting a positive number? Click here to see answer by rfer(12657)

 Question 365606: Hello! I need help with a math word problem.Okay here it is Peter,Sam,Sandy and Isabel work at a kennel.Peter gives the baths the dogs every 4 days;Sam cleans the cages every 6 days;Sandy feeds the animals every 2 days;ans Isabel helps mop the floor every 3 days.How many times in 12 weeks will all 4 helpers be at the kennel? Sorry about the horrible spelling.Oh and thanks in advance for the huge help you don't know how much it means that your helping me. Thanks again, A Student Click here to see answer by ankor@dixie-net.com(15650)

 Question 365689: I'm having problems with my Algebra One homework. I need to "Decide whether the graphs of the two equations are parallel lines" without using a graph. For example, y=x+3 and y=x+6 Can you help? Click here to see answer by jim_thompson5910(28595)

 Question 365770: Ken can cut and split a cord of wood twice as fast as brent. When they work together, it takes them four hours. How long would it take each of them working alone to do the job? Click here to see answer by robertb(4012)