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November 27, 2014

Homework Help: Math

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Recent Math Questions

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Math
How do I write 27% as a rate ratio?
Tuesday, October 28, 2014 at 4:13pm

math
the drama club held a car wash on saturday and sunday. they washed a totl of 60 cars if they waShed 40% of the cars on sunday how many cars did they wash on sunday? PLEASE HELP DONT UNDERSTAND
Tuesday, October 28, 2014 at 4:03pm

Math 130
Which has the greater effect on the surface area of a right circular cylinder - doubling the radius or doubling the height? How would I explain this
Tuesday, October 28, 2014 at 4:00pm

Math
Sarah is 3 years older than 1/3 Darcy's age. Translate this phase to an algebraic expression.
Tuesday, October 28, 2014 at 3:29pm

Math
If an object is propelled upward from ground level with initial velocity of 55 feet per second, it's height h in feet t seconds later is given by the equation H=-16t^2+55t. after how many seconds does the object hit ground?
Tuesday, October 28, 2014 at 2:56pm

Math
Given the function q=D(x)=k/x^n where k is a positive constant and n is an integer greater than 0. (a) How would you find the elasticity of the demand function (b) Is the value of the elasticity dependent on the price per unit c.) Does the total revenue have a maximum, and if ...
Tuesday, October 28, 2014 at 2:48pm

Math
Write a word phrase for this algebraic expression. 6.5-h
Tuesday, October 28, 2014 at 2:16pm

Math: Statistics
1. A regression analysis includes the effect of Age, which is categorised into five levels. How many dummy variables should be defined for including it in the analysis? 2. A regression analysis includes Sex as an explanatory variable. How many dummy variables are required to ...
Tuesday, October 28, 2014 at 1:22pm

Math HELP!
Point A(6,-2) is reflected over the x axis. Write the coordinates of A' A. (6,2) B. (6,-2) C. (-6,2) D. (-6,-2) Is the answer A? Thank you
Tuesday, October 28, 2014 at 1:21pm

Math HELP!
Use arrow notation to write a rule that describes the translation of a point from (5,6) to (6,11). A. (x,y) ----> (x+1,y+5) B. (x,y) ----> (x-1,y-5) C. (x,y) ----> (x-1,y+5) D. (x,y) ----> (x+1,y-5) Is the answer A? Thank you
Tuesday, October 28, 2014 at 1:06pm

Math
The value of k that makes the expression x^2 + 72x +k a perfect square trinomial is ?
Tuesday, October 28, 2014 at 12:53pm

Math help
Translate P(4,0) right 3 units and up 5 units. Give the coordinates of the image point. A. (-5,1) B. (1,-5) C. (5,7) D. (7,5) Is the answer D? Thank you
Tuesday, October 28, 2014 at 12:51pm

math just practice
Sr = SQUARE ROOT 1. What is the solution to -75 sr to the nearest integer? (1 point) 9 8 -8 -9 2. Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block? (1 point) 1 foot 2 ...
Tuesday, October 28, 2014 at 12:45pm

math
A rectangle has one side on the x-axis and two vertices on the curve y=6/{1+x^2}. Find the vertices of the rectangle with maximum area. Vertices =
Tuesday, October 28, 2014 at 12:35pm

Math
344 miles in 11 hours 1. 344 miles/hours 2. 3784 miles/hours 3. 0.03miles/hours 4. 31.27 miles/hours** My answer is 4 can is that right?
Tuesday, October 28, 2014 at 12:17pm

math
the perimeter of a basketball court is 102 meters and the length is 6 meters longer than twice the width. What are the length and width?
Tuesday, October 28, 2014 at 9:05am

math
Identify the solution of the system of equations if any -2x-4y=1 , 12y=-6x-3 is this no solution or (o,-1) (-1,0) or infinitelt many solution
Tuesday, October 28, 2014 at 8:55am

math
to graph C(3,2) on a coordinate plane Translate the point left 3 units and down 1 unit.Graph the image point C. A. x,2,y3=x,1,y,1 B. x,2,y2=x,1,y,1 C. x,2,y3=x,1,y,1 D. x,3,y2=x,1,y,1 Is the answer D? Thank you
Tuesday, October 28, 2014 at 7:28am

math
the cost C varies directly as the number in of penals is written as?
Tuesday, October 28, 2014 at 6:19am

math
what is mantisa?
Tuesday, October 28, 2014 at 5:59am

math
A sticker is 1.2 cm wide how many stickers will fit edge to edge on a strip of paper that is 108 Centimeters long
Tuesday, October 28, 2014 at 5:53am

algebra math
Which one of the following is a geometric sequence? A. 2, –3, 9⁄2, −18⁄4 B. 0,1,2,3,... C. 8,4,2,1,1⁄2,1⁄4,... D. –7,10,23,36,.. i think the answer is D Can please check it ?
Tuesday, October 28, 2014 at 12:56am

Math 5 grade
I am a whole number. Rounding me to the nearest ten thousand makes me 10000. Some of my digits are even; their sum is 21; they are in order from least to greatest; their product is 384 and no digit is repeated. What number am I?
Monday, October 27, 2014 at 11:58pm

Math Help..!
A stock's price dropped from $63.28 per share to $27.45. What was the loss on a single share of the stock?
Monday, October 27, 2014 at 11:09pm

Math
Translate this phrase into an algebraic expression. 7 increased by twice Malik's savings. Use the variable m to represent Malik's savings.
Monday, October 27, 2014 at 11:07pm

Math
Solve algebraically, 1/x=(x-34)/(2x^2).
Monday, October 27, 2014 at 10:53pm

Math
There are 18 fewer bus riders than walkers. There are 6 walkers. How many students ride the bus?
Monday, October 27, 2014 at 10:45pm

math please help
Custom Kitchens received an invoice dated November 17 from Idea Cabinets Ltd. for $7260 with terms 3/15, 15/30,n/60. If Custom Kitchens made a payment of $4000 on December 2, what further payment on December 16 will settle the account?
Monday, October 27, 2014 at 10:34pm

Math
The height h in metres above the ground of a projectile at any time t in seconds after the launch is defined by the function h(t)=-4t +48t +3 A.) Complete the square to write H in standard form b.) Find the height of the projectile three seconds after the launch c.) Find the ...
Monday, October 27, 2014 at 10:25pm

Math
A rectangular tabletop has a length of 4 3/4 feet and an area of 11 7/8 square feet. What is the width of the tabletop❓❔❓❔​❓❔
Monday, October 27, 2014 at 10:23pm

math
Trevor invests $10000 for a year.he obtains 8% per year for a part of the money and 10%per an um for remainder.at end of the year he sill receive $950 in interest.how much does he invest at 10%
Monday, October 27, 2014 at 10:13pm

math
Sum of 8numbers is X,sum of a different set of nine numbers is 2x.average of smaller set of numbers is one more than average of the larger set of numbers.write an equation for X and solve it
Monday, October 27, 2014 at 10:10pm

math
In three successive years the price of the common shares of Bedrock Resources Ltd. fell 40%, 60%, and 70% ending the third year at 50 cents. How much (in dollars and cents) did the share price drop in the second year?
Monday, October 27, 2014 at 10:04pm

math
A bottle of cordial contains 5litres ,10% is pure fruit juice.how many litres of water must be added to dilute it to 4% fruit juice
Monday, October 27, 2014 at 10:03pm

math
Anna starts the race 10m ahead of ping.ping runs at 20%faster tan anna`s speed.they will be level in the race after 9seconds.find average speed of anna
Monday, October 27, 2014 at 10:00pm

math
Hanna and Fran have $120, Hanna and Pete have $230. Pete has 6x more than Fran. How much money does Hanna have?
Monday, October 27, 2014 at 9:51pm

Math
While remodeling her house , Ms.Puliafici paints her cabinets . There are 210 square feet of cabinets.She can paint 20 square feet every 1/2 hour . How long will it take her to finish the cabinets ?
Monday, October 27, 2014 at 9:45pm

math
3/5 + 3/4 round each fraction and estimate the sum. add the two fraction using a common denominator and then round the result. which estimate is closer to the actual answer.
Monday, October 27, 2014 at 9:23pm

math trade discount
In addition to the regular trade discount of 25% and a volume purchase discount of 8.33333333% from the manufacturer, Appliance Warehouse is offered a further 5% discount for orders places in January. a. What is the list price on an electric range whose net price works out to ...
Monday, October 27, 2014 at 9:22pm

math
What is the area of a rectangular room that is 3¾ yards long and 3⅓ yards wide
Monday, October 27, 2014 at 9:17pm

math
Bianca has a total of 25 cent. She has some nickels and pennies. How many different combinations of nickels and pennies could Bianca have?
Monday, October 27, 2014 at 9:16pm

Math invoice
Custom Kitchens received an invoice dated November 17 from Idea Cabinets Ltd. for $7260 with terms 3/15, 15/30,n/60. If Custom Kitchens made a payment of $4000 on December 2, what further payment on December 16 will settle the account?
Monday, October 27, 2014 at 9:15pm

math
A box of chalk and 2 staplers cost $10 Three boxes of chalk and 2 staplers cost $18. Find the total cost of 1 box of chalk and 1 stapler?
Monday, October 27, 2014 at 9:14pm

math
4/10 -1/5 9/15-1/3 4/12-1/6 find the difference
Monday, October 27, 2014 at 9:04pm

Math
Custom Kitchens received an invoice dated November 17 from Idea Cabinets Ltd. for $7260 with terms 3/15, 15/30,n/60. If Custom Kitchens made a payment of $4000 on December 2, what further payment on December 16 will settle the account?
Monday, October 27, 2014 at 8:52pm

Math
In three successive years the price of the common shares of Bedrock Resources Ltd. fell 40%, 60%, and 70% ending the third year at 50 cents. a. What was the share price at the beginning of the three-year skid? b. How much (in dollars and cents) did the share price drop in the ...
Monday, October 27, 2014 at 8:51pm

math
Ms. Hernandez has 17 tomato plants that she wants to plant in rows. She will put 2 plants in some rows and 1 plant in the others. How many different ways can she plant the tomato plants?
Monday, October 27, 2014 at 8:51pm

math 7
a model house is 12 cm wide if it was built with a scale of 3cm and 4m than how wide is the real house
Monday, October 27, 2014 at 8:50pm

Math
Mr. and Mrs. Ogrodnik want to list their house at a price that will net them a minimum of $320,000 after a real estate commission of 5.5% of the selling price. Rounded to the nearest $100, what is the lowest offer they could accept on their home?
Monday, October 27, 2014 at 8:50pm

Math
after a flood on the Red River, 1200 L of water were pumped out of a basement in 8 h. What was the unit rate of outflow?
Monday, October 27, 2014 at 8:15pm

math
Jenna says that no row or column contains products with only odd numbers. Do you agree? explain.
Monday, October 27, 2014 at 8:13pm

Math
The medical records of infants delivered at Kaiser Memorial Hospital show that the infants' lengths at birth (in inches) are normally distributed with a mean of 22 and a standard deviation of 2.1. Find the probability that an infant selected at random from among those ...
Monday, October 27, 2014 at 8:02pm

Math
Use the distributive property to rewrite the expression 1/2(C-8)=
Monday, October 27, 2014 at 7:59pm

math
Scale Drawings Marking City is 5 inches away from jamming city on the map. What is the actual distance between the two cities? Scale: 2inches:35Miles My answer 2in/35mi = 7ft/x mi 2x=7x35 2x/2=245/2 x=122.5 miles
Monday, October 27, 2014 at 7:47pm

math
David has a hose that is 27 ft long. He wants to cut it into two pieces so that the longer piece is 3 ft more than 2 times the length of the shorter piece.
Monday, October 27, 2014 at 7:23pm

math
consider the sum 3/5+3/4. round each fraction and estimate the sum. add the two fraction using a common denominator and then round the result. which estimate is closer to the actual answer.
Monday, October 27, 2014 at 7:08pm

Math
The slowest mammal on Earth is the sloth. A sloth might move along a tree at a maximum rate of just 3 ^-1m each minute. At this rate, how long will it take a sloth to climb a tree that is 33 m tall?
Monday, October 27, 2014 at 7:05pm

math
if the school record for the softball throw is 78 ft about how much farther must Robert throw the ball to match the record. a 15ft b 16ft c 18 ft d 20ft
Monday, October 27, 2014 at 7:03pm

math
4/8-1/4 find the diffence
Monday, October 27, 2014 at 7:00pm

math
3 1/4 + 2 5/6 estimate each sum or difference
Monday, October 27, 2014 at 6:55pm

math
9/10-3/5 find the difference
Monday, October 27, 2014 at 6:29pm

math
which number has the greatest value? a 3.5 b square root of 15** c square root of 1/16 d 26/100 which number is an irrational number? a 3.5 b square root of 36 c square root of 48 d 37/100*** If a is a rational number and b is an irrational number, then the sum a + b is A)...
Monday, October 27, 2014 at 5:29pm

Math
Name a number that is a factor of both 12 and 24
Monday, October 27, 2014 at 5:08pm

Math
Find the volume of a bag if the bag is 5.5in X 3in X 8in
Monday, October 27, 2014 at 4:34pm

Math Physics
Water is pumped at 250m^3/min from a lake into a tank 65.0 m above the lake. (a) What power, in kW, must be delivered by the pump? (b) What horsepower rating does this pump motor have? (c) What is the increase in potential energy of the water each minute?
Monday, October 27, 2014 at 4:21pm

Math
Sue bought an ice cream cone from Dairy Queen. The cone had a radius of 3cm and a height of 8cm. If I use the formula of (TT=3.14, r=radius, h=height) 2 V=1/3TTr h Is the answer 50.24 cm3? Any help is appreciated. If I'm not right could you tell/show me how to figure this ...
Monday, October 27, 2014 at 4:10pm

Math
300 milliliters are equivant to how many liters?
Monday, October 27, 2014 at 4:09pm

Math
Brand A: 20 for $2.50 Brand B: 35 for $3.25 Brand C: 50 for $5.25 Brand D: 100 for $10.00 The school nurse is low on band-aids. She heads to the store and finds 4 brands. Which one is the best buy? You must prove your answer.
Monday, October 27, 2014 at 4:07pm

Math, Please Help!
Find the a/b form, where a and b are integers and b isn't equal to 0, for each of the following: A. 0.29 (29 repeating) B. 0.00029 (29 repeating)
Monday, October 27, 2014 at 3:45pm

math
A florist had an equal number of red and yellow tulips. She sold 624 red tulips. Then she had 4 times as many yellow tulips as red tulips. How many tulips did she have at first. 624 X 5 ----- 3120
Monday, October 27, 2014 at 3:43pm

math problem solving
leslie has 17 tomato plants that she wants to plant in rows. she will put 2 plants in some rows and 1 plant in others. how many different ways can she plant the tomato plants?
Monday, October 27, 2014 at 3:32pm

Math
If the average cost per salaried employee increases by $4,000 in the Kitchen Department, what is the new average cost per employee in the department? (more info: Salaried Employees: Average # of employees: 2 Cost in Thousands: 52 Average Cost/Employee: 26 Hourly: Average # of...
Monday, October 27, 2014 at 3:18pm

Math help
A cafeteria has two soda machines. Once machine has the following flavors: Cola, root beer, and lime. The second machine has lemon, orange, cola, and cherry. Which set represents all flavors in the two machines. a. {Cola, root beer, lime} b. {cola} c. {cola, cola, root beer, ...
Monday, October 27, 2014 at 3:00pm

math
How do you solve this? 5x- [1.5 -3.6] [0.2 1.3] [-0.3 2.8]= [-5.6 1.7] 5x/5[-1.5 -3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] x = [-1.5 3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] [-1.5 + 0.2 + 3.6 + 1.3] [0.3 + -5.6 + -2.8 + 1.7] x = [-1.3 4.9] [-5.3 -1.1] I have tried to work this out ...
Monday, October 27, 2014 at 2:02pm

Math
A kitchen floor measures 10ft by 12 ft. Calculate the minimum area and maximum area using the greatest possible error
Monday, October 27, 2014 at 1:02pm

Math
A particle is moving along the curve y= 2 \sqrt{4 x + 4}. As the particle passes through the point (3, 8), its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
Monday, October 27, 2014 at 12:43pm

math
what is the consecutive positive odd numbers of 34,459,425?
Monday, October 27, 2014 at 12:35pm

Math Homework
Solve the inequality and express the answer in interval notation: 1.) 3x^2+2x>2x^2-3 2.) 4x^2-x<0
Monday, October 27, 2014 at 11:53am

Math
There are some animals in a farm.there are 50 goats. the ratio of goats to sheeps is 1:4. find sheep
Monday, October 27, 2014 at 4:42am

Math
1/4 of Peter's money is the same as 2/3 of James money, James has $60. How much do they have altogether?
Monday, October 27, 2014 at 2:45am

Math
determine the values of a,b,c,and d for a sinusoidal equation in the form: y= a sin b(x-c)+d and y= a cos b(x-c)+d using the max= 23.1 and min= -19.7 to determine the value. how to determine the values? thank you..
Monday, October 27, 2014 at 2:33am

Math
X^x-31x+108=0
Monday, October 27, 2014 at 12:22am

math
4 PARTS TO THIS...SOUNDS CHINESE...HELP! Chef Alonso is creating a recipe called Spicy Italian Chicken with the following ingredients: 3/4 pound chicken, 2 1/2 cups tomato sauce, 1 teaspoon oregano, and 1/2 teaspoon of his special hot sauce. a) Chef Alonso wants each serving ...
Monday, October 27, 2014 at 12:10am

Fractions Math
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of what was left and 3/4 ...
Sunday, October 26, 2014 at 10:46pm

Math
Your basketball team scored 4 fewer than twice as many points as the other team. a. Write and expression for the number of points your team scored. b. The other team scored 24 points. How many points did your team score? For a. I got t*2-4 so far, is it right? Should I correct...
Sunday, October 26, 2014 at 10:33pm

Math
Fiona and camila took a load of peaches to the farmers market. During the first hour , they sold 1/2 of the peaches plus 1/2 of a peach. In the second hour, they sold 1/3 of the remaining peaches plus 1/3 of a peach. In the third hour , they sold 1/4 of what was left and 3/4 ...
Sunday, October 26, 2014 at 9:56pm

MATH
A BICYCLE TRAVELS WITH EACH TURN OF ITS WHEELS IS ABOUT 3 1/67 TIMES THE TIRE DIAMETER. iF THE TIRES HAVE A DIAMETER OF 24 1/2 INCHES, HOW FAR DOES IT TRAVEL WITH EACH TURN OF THE WHEELS
Sunday, October 26, 2014 at 9:36pm

math measurement
Jane has two pieces of ribbon.One piece is 10cm longer than the other.the total of the two pieces is 40cm.how long is the shorter piece?
Sunday, October 26, 2014 at 8:56pm

help PLEASE math 112
Which has the greater effect on the surface area of a right circular cylinder - doubling the radius or doubling the height? how can I explain this
Sunday, October 26, 2014 at 8:43pm

math
frank is 3 times old as ken. frank is 15 years older than eileen, while ken is 1 year younger than eileen. What are thw ages of frank, ken and eileen?
Sunday, October 26, 2014 at 8:11pm

math
P varies directly as the square root of q. P=8 when q =25 find p when q = 100
Sunday, October 26, 2014 at 7:39pm

Math
Liz uses 19 connecting cubes to make a model of house. The house model is in the shape of a rectangle and is one cube high. How many different ways could Liz make the model of the house?
Sunday, October 26, 2014 at 7:03pm

math
your recipe calls for 300 grams of chocolate .you have 200 grams .what fraction of chocolate do you have?
Sunday, October 26, 2014 at 6:47pm

Math
10. Estimate 30% of the student population. You must show all of your work and provide an explanation. *There are 850 students.
Sunday, October 26, 2014 at 6:07pm

math problem
Adam, Sam, and Eddie have to meet their boss at 3:00 in the office 9 miles apart from their home, and they must be arrive in time for the appointment. Adam had a bicycle, Sam had a skateboard,and Harry had no transport. So they have to share. so they left the house together. ...
Sunday, October 26, 2014 at 3:33pm

math
all the seats in two sections of a movie theater are occupied. in one section there are 8 row with 18 seats in each row.
Sunday, October 26, 2014 at 2:58pm

Math
Can someone please check these problems? Thank you! Solve each equation for the indicated value. 1. a-b=-c, for a I got a=-c+b 2. 4y+6x=12, for y I got y=-3/2x+3
Sunday, October 26, 2014 at 2:53pm

Math
Find the exact interest on a loan of $32,400 at 7% annually for 30 days.
Sunday, October 26, 2014 at 2:08pm

math
Ashley recently opened a store which sells only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes one person 2 minutes to prepare one bag. How many hours will it take to prepare 900 bags of samples if Ashley ...
Sunday, October 26, 2014 at 1:18pm

Algebra 1
Andrew is making a plan to complete a class math assignment. He has 48 problems to complete over 5 days. He decides to complete the assignment is such a way that his total number of completed problems doubles every day. He realizes that that number must be 48 by the end of ...
Sunday, October 26, 2014 at 1:07pm

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