Friday
October 21, 2016

# Homework Help: Math

## Recent Math Questions

math
A 2-digit even number is divided by 5. The quotient is a 1-digit even number. what are all the 2-digit number that fits the description
Monday, October 17, 2016 by Antonio

Math
what percent of 45 is 9
Monday, October 17, 2016 by Jenny

Math
A 2 digit even number is divided by 5. The quotient is a 1 digit even number. What are all the 2 digit numbers that fit this description ?
Monday, October 17, 2016 by Fred

Math
1. Which of these numbers can be classified as both real and irrational? 5.858585858 63.4 square root 21 ** square root 36 2. Which is both a real number and an integer? 23 ** 1 over 4 square root 27 3.402538 3. Which of these numbers is classified as both real and rational? ...
Monday, October 17, 2016 by Cassidy

math
The sum of two numbers is 94.6. If one number is 19 times the other, what are the two numbers?
Monday, October 17, 2016 by karly crouse

Math
A square plot of land has an area of 1,156 square feet. What is the perimeter of the plot?
Monday, October 17, 2016 by Johnny

Math
There are 240 students in the hall 3/8 in fraction of them are boys.if 3/5 in fraction of them are gis have short hair ,find out the number of girls who have long hair
Monday, October 17, 2016 by Kimay

Math
Why is 0.57 a rational number?
Monday, October 17, 2016 by Correct

Math (Confused)
A certain economy's consumption function is given by the equation C(x)=0.75x+5 where C(x) is the personal consumption expenditure in billions of dollars and x is the disposable personal income in billions of dollars. Find C(0), C(50), and C(100). a. C(0)=42.5, C(50)=5, C(...
Monday, October 17, 2016 by Rob

math
one-half a number minus 6 is 4. find the number
Monday, October 17, 2016 by Alfred

Math 8
What is the sum of 5/6 + 2/3?
Monday, October 17, 2016 by Person*

Math
Find the 12th term of the sequence - 1/3,-5/6,-4/3,-11/6
Monday, October 17, 2016 by Janet

Math Help
A server purchased at a cost of \$108,000 in 2002 has a scrap value of \$18,000 at the end of 5 years. Find the linear equation expressing the server's book value at the end of t years. a- V(t)=108,000 b- V(t)=108,000t-18,000t c- V(t)=18,000t+108,000 d- V(t)=18,000t e- V(t)=...
Monday, October 17, 2016 by Rob

Math
Find the 12th term of the sequence-1/3,-5/6,-4/3,-11/6
Monday, October 17, 2016 by Janet

Math
Write each number 327 ; 792 between: two consecutive multiples of 10
Monday, October 17, 2016 by Fahed

An office building worth \$1 million when completed in 2000 is being depreciated linearly over 80 years. What will be the book value of the building in 2048? (Assume the scrap value is \$0.) a. The book value of the building in 2048 will be \$200,000. b. The book value of the ...
Monday, October 17, 2016 by Kal Jay

Math
Write each number 327 ; 792 between two consecutive multiples of 10
Monday, October 17, 2016 by Anonymous

math
given sin theta=8/17 when 0°<theta<90° without using a calculator.find the value of 2cot theta?
Monday, October 17, 2016 by jeysha

math
-12/3*(-8+(-4^2)-6)+2
Monday, October 17, 2016 by Meee

Math
write each numbers: 327;792;403 and 1,878 between: two consecutive multiples of 10
Monday, October 17, 2016 by Fahed

Math
there are 50 animals on a farm,24% of them are pigs, 30% are cows and the remaining are sheep. what is the percentage of the total number of cows and pigs to that of the sheep?
Monday, October 17, 2016 by Anonymous

Math
At the end of the course David averaged a 90% on Tests; 80% on Quizzes; 60% on Quick Checks; 90% on Discussions; 100% on Participation and 95% on Sample Work. What would be his final percentage to the nearest tenth and please show how you got your answer! Thank you so much

math
thea verage of two middle rational numbers if 4/7,1/3,2,3,5/9 in aceding order is
Monday, October 17, 2016 by sahithi

MATH
The quantity demanded for a certain brand of portable CD players is 200 units when the unit price is set at \$90. The quantity demanded is 1,200 units when the unit price is \$40. Find the demand equation. I'm leaning toward d, but I'm not sure. a. p = - 0.05x + 100 b. p...
Monday, October 17, 2016 by Kal Jay

math need help ASAP
use benchmark to estimate the sum 3/5 + 3/17
Monday, October 17, 2016 by N

Math
4 - t = 3(t - 1) - 5
Monday, October 17, 2016 by Random

math
54:30=_:5
Monday, October 17, 2016 by trish

Spanish
1. What does "Yo necesito la carpeta de argollas" mean in Spanish? A. You need a calculator. B. I need the three-ring binder. **** C. You need to take science class. D. I need a dictionary 2. What country was Diego Rivera from? A. Cuba B. Puerto Rico C. México...
Monday, October 17, 2016 by Just a confused person...

MATH 115
The price of a home in Medford was dollar-sign Baseline 100,000 in 1985 and rose to dollar-sign ⁢ 148 ,000 in 1997. a. Create two models, f(t) assuming linear growth and g(t) assuming exponential growth, where t is the number of years after 1985. Round coefficients to ...
Monday, October 17, 2016 by Anyno.

Math
If 9 apples cost \$8.1 how much would 5 apples cost
Monday, October 17, 2016 by Emily

Math
the length of the hypotenuse of a right angled triangle is one unit more than twice the length of shortest side and the other side is one unit less than twice the length of the shortest side. find the lengths of other two sides.
Monday, October 17, 2016 by Prathamesh

MATH
Determine whether the equation defines y as a linear function of x. If so, write it in the form y = mx + b. 6x-9y^2+8=0 a. y=6x+8 b. y=6/9x-8 c. y=6x-8 d. y=6/9x+8 e. y isn't a linear function on x. Thank you.
Monday, October 17, 2016 by Kal Jay

Math
(1/5)^-m=125^3m
Monday, October 17, 2016 by Maria HELPPP

Math
I am purchasing a car for \$8,500. I have a loan for the purchase with a 9.2% annual interest rate compounded continuously and the loan will run for three years. How much do I pay per month?
Monday, October 17, 2016 by Shauna

MATH (Celcius/Fahrenheit)
The freezing point is 0C and 32F, and the boiling point is 100C and 212F, respectively. Find F as a function of C and use this formula to determine the temperature in Fahrenheit corresponding to temperature of 15C. a. 60F b. 62F c. 59F d. 61F thank you
Monday, October 17, 2016 by Kal Jay

Math
Henry took five tests. His average score was 57 points. He scored at least 50 points on each test. There were 100 points possible on each test. What is the highest score that Henry could have earned on any of the five tests?
Monday, October 17, 2016 by Edgar

MATH
Consider the supply equation p=2x+10, where x is the quantity supplied in units of 1,000 and p is the unit price in dollars. Determine the number of units of the commodity the supplier will make available in the market at the given unit price. p=16
Monday, October 17, 2016 by Kal Jay

math
A dairy farmer wants to mix a 20% protein supplement and a standard 10% protein ration to make 1200 pounds of a high-grade 15% protein ration. How many pounds of each should he use?
Sunday, October 16, 2016 by larry

math
In a class of 150 students 70 passed in verbal and 90 passed in aptitude.10 failed in both the subject.how many students passed in both subject
Sunday, October 16, 2016 by Anonymous

Math
Determine whether the statement is true or false. The lines with equation ax+by+c1=0 and bx-ay+c2=0, where a ≠ 0 and b≠ 0, are perpendicular to each other. ________________________________________​______ True. The slopes of the lines are m1 and m2 ...
Sunday, October 16, 2016 by Kal Jay

Math
If an average catcher takes 1.9 seconds to throw a baseball from home plate to second base on a 90 foot baseball diamond how fast in mph did the catcher throw the ball?
Sunday, October 16, 2016 by Anne

Math
Mary bought a scarf for five dollar spent Half of the remaining money on jogging shoes bought lunch for two dollars and then spent half of her remaining dollars on a DVD she had \$10 left how much money does she start with?
Sunday, October 16, 2016 by Sarah

Math
Mary bought a scarf for five dollar spent one and a half of her remaining money on jogging shoes bought lunch for two dollars and then spent half of her remaining money on a DVD she had \$10 left how much money does she start with?
Sunday, October 16, 2016 by Sarah

Math
if one gallon of milk, \$3.84, what is the cost of three pints
Sunday, October 16, 2016 by Yani

Math
A hardware store makes a mixed bag of 42 items using screws, bolts, and washers. The cost of screws are \$3.00 each, bolts cost \$2.00 each, and washers are \$1.50 each. The mixture calls for four times as many screws than bolts. The total cost of the mixture is \$102.00. How much...
Sunday, October 16, 2016 by Aaron

Math
If one liqid gallon is 231 cubic inches, how many gallons of juice would fit in a container that is 2 ft. by one foot by 1 foot.
Sunday, October 16, 2016 by KAte

Math
order these numbers from least to greatest. 3/20, 45%, 1/5, 7.5%, 27.5%
Sunday, October 16, 2016 by SHARON

Math
A machine produces open boxes using rectangular sheets of metal (12in by 20in). The machine cuts equal-sized squares from each corner, and then shapes the metal into an open box by turning up the sides. Express the volume of the box V(x) in cubic inches as a function of the ...
Sunday, October 16, 2016 by Faith

math
find the lcm for 6, 18
Sunday, October 16, 2016 by Dave

math
The length of a rectangle is 3 feet less than 4 times the width. If the perimeter is 84 feet, find the length and the width of the rectangle.
Sunday, October 16, 2016 by larry

Math
The first term of a GP is 64 and the common ratio is 1/2.How many terms must be added to obtain a total of 127 1/2?
Sunday, October 16, 2016 by Galena

math
identify the situation that each graph could represent
Sunday, October 16, 2016 by angie

MATH
Allyne said that she had 8/5 of pizza left from the party. Billy said that she had 1.3 pizzas left. Explain if Billys answer is correct or not.
Sunday, October 16, 2016 by SHARON

Math
Convert each statement below into symbolic form and generate its truth table: If the New York Yankees win the world series or the New York Jets win the super bowl then New York fans will be overjoyed and dance in the streets. Y: The New York Yankees win the world series. J: ...
Sunday, October 16, 2016 by NR

Math
In ΔABC, A=75 degrees and b=6. Giving your answer in interval notation, find the range of values of a such that: only one triangle is possible. two different triangles are possible. Please explain or show work!
Sunday, October 16, 2016 by Amber

Math
If 1 bag of mulch covers 2 cubic feet, how many bags of mulch do you need to cover a garden three inches thick, eight feet long, and four feet wide?
Sunday, October 16, 2016 by Noah

English
How can "teacher behaviours in math" be connected to constructivism??
Sunday, October 16, 2016 by Trish

math
Christie pilots her plane for 360 mi against a headwind in 33 hrs. The flight would take 22 hrs and 15 mins with a tailwind of the same speed. Find the headwind and the speed of the plane in still air.
Sunday, October 16, 2016 by JULIA

Math
Jean has \$280 in her savings account starting next week she will deposit \$30 in her account every week is the amount of money in her account proportional to the number of weeks. Thank you for helping
Sunday, October 16, 2016 by Jonathan

Math
At the beginning of a trip, Gail's odometer reading was 100001 km. Gail filled the tank with 35L of gas. During the trip Gail bought 48L of gas, and at the end of the day filled the tank with 45.5L of gas. Gail was surprised to find at that time tat the odometer was the ...
Sunday, October 16, 2016 by Johnathon

math
Ed will deposit \$10 every week to his bank account for the next 4 weeks. How much money will ed have in his bank account after 4 weeks?
Sunday, October 16, 2016 by Darlah

Math
What's the missing number ? 5+3-6-8+4-?=-9
Sunday, October 16, 2016 by Kay2605

Math
Find the value of x. x is hypotenuse given is the angle 28 degrees and the adjacent is 11 now how am i suppose to find the hypotenuse with only given the angle 28 degrees and the adjacent 11 i don't have the opposite
Sunday, October 16, 2016 by Kianna

Math
What's the missing number? 5+3-6-8+4-?= -9
Sunday, October 16, 2016 by Mo

Math
1. y-5/3=1 -2 8*** 18 6 2. 6x+29=5 -4*** -18 204 -144 3. -21a+16a -5a*** 5a 37a -37a 4. 9a-b-2a-10b -7a+11b 11a+9b -11a-9b 7a-11b*** 5. 5(x+10)+x 6x+15 5x+15 6x+50*** 4x-50 6. -4n+7+2n=1 1 3*** -3 4 7. 4(y-4)=8 -2 2 4 6*** 8. Raymond buys bottles of water at \$2.10 each and a ...
Sunday, October 16, 2016 by EmberShy

MATH
d sum of 2 numbers is 38 when 8 is added to twice one of the numbers d result is 5 times the other number find d two no
Sunday, October 16, 2016 by Barsit

Math
On a California map 1/4 of an inch represents 20 miles how many miles does 3 1/4 inches represent
Sunday, October 16, 2016 by Ally

Math
The first three terms of an AP are x ,2x+1 and 5x-1.Find the value of x and the sum of the first 10 terms
Sunday, October 16, 2016 by Galena

Salvador bought 3 pounds of oranges that cost x cents per pound, a cucumber for 59 cents, and 2 bananas for 35 cents. Write an expression in simplest form that represents the amount spent. I don't understand how you would write that into an equation. I don't think I ...
Sunday, October 16, 2016 by Jacobe

Bacterial populations can grow to enormous numbers in a matter of a few hours with the right conditions. If a bacterial colony doubles size every 15 minutes, how many bacteria will be present after 1 hour if the colony began with 4 bacteria?
Sunday, October 16, 2016 by Jacobe

Science/Math
You put 50 mL of water in a graduated cylinder, then you place an object in the water. The level rises to 55 mL. What is the volume of the object?
Sunday, October 16, 2016 by Mary

Math
Solving ya Systems of Equations by elimination -14x+15y=3 21x-20y=-10 The LCM is 42 so I am able to get (-14x +15y=15)3 = -42x+45=45 (21x-20y=-10)2 = 42x-40y=-20 y =7 but when I plug it in to try and figure out x I do not get a whole number, can you help?
Sunday, October 16, 2016 by Angela

Math
In a school there are 7 girls to every 5 boys.If there are 120 more girls than boys.How many pupils are there in tge school?
Sunday, October 16, 2016 by Anonymous

Math
Guys please help me with this Trigonometry question based on De Moivre's theorem. Q: Find ¦È such that 0¡Ü¦È¡&Uu​ml;360. cos7¦È + cos3¦È = cos5¦È I attempted to solve it with ...
Sunday, October 16, 2016 by Nye

Math
There are 50 pupils in wesleys year group at school three tenths of them don't like PE lessons the rest do how many pupils in wesleys year like PE lessons
Sunday, October 16, 2016 by Joun

math
In a survey, 12% of people have no pets, 44% of the people have 1 pet, 16%of the people have 2 pets and 28% have 3 or more pets. If 126 people have two or fewer pets, how many people were in the survey?
Sunday, October 16, 2016 by procraft

Math
A machine worth Ruppes 25000 by 5% find the value after 1year
Sunday, October 16, 2016 by Har!@#\$%^&

MATH
During the 1st year at university, Erica¡¦s father had been sending her \$1,000 per month for incidental expenses.Starting from the 2nd academic year, her father decided instead to make a deposit into a savings account on August 1st every year so that Erica could ...
Sunday, October 16, 2016 by Anonymous

Math
5/9 ,7/18 and 1/2 arranged from the smallest to the largest
Sunday, October 16, 2016 by Peter

Math (derivative by limit process)
Find the derivative of the function by the limit process. f(x)=1/sqrt(x) I've worked through my problem and got f'(x) to be -1/2x but the actual answer is -1/2x^3/2? Where did the 3/2 power come from? Any help is greatly appreciated!
Sunday, October 16, 2016 by Ray

Math
What does the greater common factor, in this case 12, represent in terms of cupcakes. It means that I have 3 boxes with 4 cupcakes in each box. I am representing 2x2x3. I drew 3 boxes each box is representing 2x2. The three boxes represent the 3
Sunday, October 16, 2016 by Carina

Math
A bouquet of 5 roses is made from 8 pink roses and 7 white roses: 1. Find the number of bouquets of 5 roses. 2. Find the number of bouquets of 5 roses in which three are pink and two are white. 3. Find the number of bouquets of 5 roses composed of all pink or all white roses. ...
Sunday, October 16, 2016 by Crystal C

Math
Henry walks out of his hall and proceeds to walk 160 feet due north. He then turns left (west) and walks 150 more feet. Finally, he turns 65 degrees left and walks 280 feet. How many feet is Henry from his starting point?
Sunday, October 16, 2016 by Amber

math trig
how do you solve arcsin(3/5) without a calculator?
Sunday, October 16, 2016 by help

Math
I have a question Me and a friend are doing our math homework and ran into a conflict What would be the product of 8-1x0+2/2 I say it would be 5 and my friend here says it would be 1 I did 1x0=0 8+2=10 10/2=5 Thanks
Saturday, October 15, 2016 by Sarah

Math
An isosceles triangle is inscribed inside a circle of radius 12 metres. Its height is increasing at a rate of 2 m/sec. At the instant when the height of the triangle is 18 m, at what rate a) its area changing? b) its perimeter changing? The answers are 0,0. But my answers ...
Saturday, October 15, 2016 by Buzz218

math
The cross section of a trough is a trapezoid with the lower base 1 metre, the upper base 2 metres and the depth 1 metre. The length of the trough is 6 metres. If water is poured in at the rate of 12 cubic metres per minute, at what rate is the water rising when the depth of ...
Saturday, October 15, 2016 by My6ws5

math
Water is being withdrawn from a conical reservoir, 3 metres radius and 10 metres deep at 4 cubic metres per minute. a) How fast is the surface of the water falling when the depth of water is 6 metres? b) How fast is the radius of this surface diminishing at this instant?
Saturday, October 15, 2016 by My4ws6

math
A man 6 feet tall walks along a walkway which is 30 feet from a the base of a lamp which is 126 feet tall. The man walks at a constant rate of 3 feet per second. How fast is the length of his shadow changing when he is 40 feet along the walkway past the closest point to the ...
Saturday, October 15, 2016 by My6ws6

math
The upper chamber of an hour-glass is a cone of radius 3 inches and height 10 inches and, if full, it requires exactly one hour to empty. Assuming that the sand falls through the aperture at a constant rate, how fast is the level falling when: a) the depth of the sand is 6 ...
Saturday, October 15, 2016 by My5ws6

math
An isosceles triangle is inscribed inside a circle of radius 12 metres. Its height is increasing at a rate of 2 m/sec. At the instant when the height of the triangle is 18 m, at what rate is: a) its area changing? b) its perimeter changing? help me plz~ Thank you so much!
Saturday, October 15, 2016 by My3ws6

math
Two poles are 24 metres and 30 metres high and 20 metres apart. A slack wire joins the tops of the poles and is 32 metres long. A cable car is moving along the wire at 5 metres per second away from the shorter pole. When the car is 12 metres horizontally from the shorter pole...
Saturday, October 15, 2016 by My2ws6

math
A light is at the top of a pole 80 feet high. A ball is dropped at the same height from a point 20 feet away from the light. A wall 80 feet high, 60 feet away from the light is built. Assuming the ball falls according to the Newtonian Law 2 s=16(t^2) where s is the distance ...
Saturday, October 15, 2016 by My1ws6

math
Two points, A and B, are 275 ft apart. At a given instant, a balloon is released at B and rises vertically at a constant rate of 2.5 ft/sec, and, at the same instant, a cat starts running from A to B at a constant rate of 5 ft/sec. a) After 40 seconds, is the distance between ...
Saturday, October 15, 2016 by My4ws5

math
Plaster is being applied uniformly to a cannon-ball at the rate of 24 ! cubic inches per minute. When the radius of the ball and plaster is 6 inches at what rate is the surface area increasing?
Saturday, October 15, 2016 by My4ws5

math
A cone of fixed height 12 inches is changing in shape through the change in the radius of the base. What rate of increase of the radius will make the lateral surface area of the cone increase at the rate of 10 ! square inches per minute when the radius of the base is 5 inches?
Saturday, October 15, 2016 by My7ws4

math
A ladder rests against a vertical pole. The foot of the ladder is sliding away from the pole along horizontal ground. Find the inclination of the ladder to the horizontal at the instant when the top of the ladder is moving 3 times as fast as the foot of the ladder.
Saturday, October 15, 2016 by My6ws4

math
Two aeroplanes fly eastwards on parallel courses 12 miles apart. One flies at 240 m.p.h. and the other at 300 m.p.h. How fast is the distance between them changing when the slower plane is 5 miles farther east than the faster plane?
Saturday, October 15, 2016 by My5ws4

math
A barge whose deck is 5 metres below the level of a dock is being drawn in by means of a cable attached to the dock and passing through a ring on the dock. When the barge is 12 metres away and approaching the dock at 3 4 metre per minute, how fast is the cable being pulled in?
Saturday, October 15, 2016 by My4ws4

Math
find four consecutive odd integers such that the sum of the least integer and greatest integer is 164
Saturday, October 15, 2016 by Gloria