Monday
May 2, 2016

# Homework Help: Math

## Recent Math Questions

math
In Mrs.Marshall's classroom, 6/7 of the students play sports. Of the students who play sports, 4/5 also play an instrument. If there are 35 in her class how many play sports and an instrument?
Monday, March 14, 2016 by Anna

math
Mrs Carter class is having a pizza party and have 15 kids and need to split 5/8 of pepperoni
Monday, March 14, 2016 by tenisha shy

math
Five runners are entered in a race. Assuming there are no ties, in how many different ways can first and second places be awarded?
Monday, March 14, 2016 by pj

math
Mrs Carter class has 30 kids and need to split 7/8 slices of bacon
Monday, March 14, 2016 by tenisha shy

math
Mrs coombs have 10 kids and need to split 5/8 of bacon
Monday, March 14, 2016 by tenisha shy

math
Syntax error from line 1 column 53 to line 1 column 60. Unexpected '0'. expressed as the quotient of two integers in simplest form? I don't know?
Monday, March 14, 2016 by Anonymous

math
how to right this in scientific in scientific notation. (2.74×10^7)+(5.6×10^7)=
Monday, March 14, 2016 by Gina-helen

math
a student’s grade in a class is simply the mean of five 100-point exams a. If the student has grades of 77, 73, 97, and 89 on the first four exams, what is the students’ grade before taking the last exam? b. What is the lowest score that the student can earn on the ...
Monday, March 14, 2016 by Debbie

Math
How many bags of fertilizer would I need to cover 1.68 acres
Monday, March 14, 2016 by Monica

math
Julie wants to have a 90 average in her math class at the end of the year. She is trying to determine what she needs to make on her final exam for this to work. Everything is weighted equally and she currently has a 85 for her quiz average, a 80 for her homework average, a 92 ...
Monday, March 14, 2016 by hallie

math
you need 2 gallons of paint to paint a mural. you already have 3/8 gallon yellow paint and 1/4 blue paint
Monday, March 14, 2016 by Anonymous

math
Point A=(0,0)and B=(3,0).Which of the following choices of C will make traingle ABC a right traingle? I try to work it with vector for whe I subtract (0,0) to (3,0) and gives me (-3,0) this only give me straight line.
Monday, March 14, 2016 by karabo

math
what is 2 1/3 plus 1 3/4? ......................................
Monday, March 14, 2016 by Chip

math
marta is a sales associate at a perfume shop.she earns 400 a week plus a 4% commission on sales.write an inequality to find the minimum amount that she needs to sell to earn at least \$460 in a week?
Monday, March 14, 2016 by amber

Math Angeles
How can you use a right angle to determine the classification of another angle
Monday, March 14, 2016 by Keeyanah

math
In a fruit salad,12 strawberries are used for every 5 peaches. Flora uses 85 of these fruits altogether to make a large fruit salad. How many strawberries does she use?
Monday, March 14, 2016 by anonymous

Math
Alex made a sketch for a homemade soccer goal he plans to build. The goal will be in the shape of a triangular prism. The legs of the right triangles at the sides of his goal measure 4 ft and 8 ft, and the opening along the front is 24 ft. How much space is contained within ...
Monday, March 14, 2016 by Carol

Math
Juan is making the shape of a rhombus. the first three angles are 80 degrees 80 degrees and 100 degrees what is the measure of the fourth angle? A. 60 B. 100<My Answer C. 180 D. 240
Monday, March 14, 2016 by keykat

Math
mike can drive his car 33 miles with one gallon of gas does he need to drive 15000 miles?
Monday, March 14, 2016 by Katy

Math again!!!!
What is the total cost of 2 sweaters at \$13 each and 2 shirts at \$8 each
Monday, March 14, 2016 by Vanessa

Math
How many groups of 2/3 are in 2?
Monday, March 14, 2016 by Amy

Math
Arrange these numbers from least to greatest: 2 over 5 comma text   end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end text...
Monday, March 14, 2016 by Marc

Math
Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and two thirds of ...
Monday, March 14, 2016 by Hi

Math
y-6¡Ý12 Solve this pleae.
Monday, March 14, 2016 by LOVE

Math
please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn:   12 + 42 + 72 + . . . + (3n - 2)2 = n(6n^2-3n-1)/2 Also, please show ...
Monday, March 14, 2016 by Taylor

math
If you place \$2,000.00 in a saving account with an interest rate of 4.5% month versus an account with a rate of 3.75% month, how much more interest could you earn in that month using the first account?
Monday, March 14, 2016 by don

math
the population of the world in the year 1650 was about 500 millions ,and in the year 2010 was about 6756 million .assuming that the population of the world grows exponentially ,find the equation for the population P(t) in millions in the year t
Monday, March 14, 2016 by dlamini zanele

Math
1. The two rectangles are similar. Which is the correct proportion for corresponding sides? the two rectangles are 4 by 12 and 8 by 24. thanks! A) 12/8=24/4 B) 8/4=24/12 C) 12/4=8/24 D) 4/12=24/8 Is the answer C? I'm not quite sure about it but that's what i'm ...
Monday, March 14, 2016 by Tim

math
F(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps. I honestly have no idea how to do this. Can someone please explain what I have to do?
Monday, March 14, 2016 by sage

Math
The bottom of a shopping bag measures 8 inches by 10 inches. The bag has a height of 12 inches. How much paper is needed to make the bag? (1 point) 256 in2 296 in2 512 in2 ** 592 in2 A cube has a side length of x feet. Which expression represents the surface area of the cube...
Monday, March 14, 2016 by Rayleigh

math
yan gets allowance money every day. On Monday he gets 5 cents. On Tuesday he gets 12 cents. On Wednesday he gets 19 cents. On Thursday he gets 30 cents. On Friday he gets 35 cents. How much will he get on Saturday? How much will he have by the 12th day? The 16th day? When will...
Monday, March 14, 2016 by bea

Math
Given a number, a strange calculator can only do the following: multiply it by 2 or by 3, or to raise it to the power 2 or 3. Starting with the number 15, what can be obtained by applying this calculator 5 times consecutively? A) 2^8 . 3^5 . 5^6 B) 2^8 . 3^4 . 5^2 C) 2^3 . 3^3...
Monday, March 14, 2016 by Amitabha

Math
A three-digit integer has been divided by 9. As a result, the sum of the digits decrease by 9. How many three-digit numbers possess this property?
Monday, March 14, 2016 by Amitabha

Math
How many possible lunch combinations can I choose from with 12 meats, 20 side items, 7desserts, and 8 drinks?
Monday, March 14, 2016 by Lillian

mATH
Brittany is checking whether the pool she wants to buy will fit in her backyard. The pool with the patio measures 4 m by 5 m. Refer to the diagram below. a) Write an algebraic expression, in factored form, for the shaded area. b) When Brittany measures her yard, she notices ...
Monday, March 14, 2016 by Anonymous

math
Jorge has prepared his science project on a piece of poster board that has an area represented by the trinomial x2 + 5x – 50. a) What are the dimensions of the board? b) Write an expression for the perimeter of the board. c) What is the actual perimeter of the board if x...
Monday, March 14, 2016 by Anonymous

math help pls pls
The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is −0.7. Analyze the following statement: High blood pressure is caused by not eating vegetables. Is this a reasonable conclusion? No; blood pressure and eating vegetables ...
Monday, March 14, 2016 by Oscar

math
The cloth has an area of 20 square feet. What could be the dimensions of the piece of cloth?
Monday, March 14, 2016 by red

MATH
NEED HELP WITH THIS THANKS!!!TOGETHER, RYAN AND MAX HAD 195 BASEBALL CARDS. ONCE MAX GAVE 3/8 OF HIS CARDS TO ANOTHER FRIEND, HE AND RYAN HAD AN EQUAL NUMBER OF CARDS. HOW MANY MORE CARDS DID MAX HAVE THAN RYAN IN THE BEGINNING?
Monday, March 14, 2016 by TYSON

Math
Using Normal Tables, Find The Probabilities Of P( -1.50 < Z < 2.50)
Monday, March 14, 2016 by Biodam

math
1. what is the term for data that are grouped closely together? a. outlier b. liner c. positive d. clustering 2. what association would you expect if you was graphing height and weight ? a. position b. nonlinear c. negative d. none of these 3. what association would you expect...
Monday, March 14, 2016 by UNKNOWN

English
Social studies is fun/difficult/easy/interesting/exciting.​ Math Is _________. Science is _________. -------------------------------- Other than the adjectives above, what other adjectives can we use for the blank? Can you name suitable adjectives?
Monday, March 14, 2016 by rfvv

Math
20% of the children in sport club play tennis 25% of the children who play tennis also play rounder there are 8 children in the club who play both tennis and rounder how many children are there in the sport club together?
Monday, March 14, 2016 by Sebastian

math
How to write a real world problem that compares the ratios 5to 9 and 12to 15
Sunday, March 13, 2016 by Daniel

Math
From a sample set of 10 colored balls--5 green, 3 red and 2 yellow-- 5 are chosen at random WITH replacement. What is the probability that the result will be: green, red, yellow, red, green? Write your answer as a four place decimal number. p(G,R,Y,R,G)
Sunday, March 13, 2016 by Jazz

Math
In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 liked both pepperoni and banana peppers on their pizza. If 66 students were surveyed, how many students do not like banana...
Sunday, March 13, 2016 by no name

Math
A team of street pavers was assigned the task of paving two parking lots one twice the size of the other. They worked for the first half of the day on the larger parking lot. Then the team split into two groups of equal number. The first group continued working on the larger ...
Sunday, March 13, 2016 by Seerat

math
if an invoice is dated april 25 and has credit terms of 3/15 ,n/45 , what is the last date on which the net amount of the invoice can be paid without incurring an penalty
Sunday, March 13, 2016 by tiffany

Math
At the​ airport, Person A and Person B are walking at the same speed to catch their​ flight, but Person B decides to step onto the moving​ sidewalk, while Person A continues to walk on the stationary sidewalk. If the sidewalk moves at 1 meter per​ ...
Sunday, March 13, 2016 by Anonymous

math lit,geography,life sciences,english,agric sci
Can I qualify if I want to study a nursing course and what are the levels I am expected to get
Sunday, March 13, 2016 by Ntombie

math
The business opened with a debt of \$3400. After 4 years, it accumulated profit of \$4900. Find the profit as a function of time t, knowing the profit function is linear. P(t)=
Sunday, March 13, 2016 by samantha

math
The angle of elevation from a boat to the top of a cliff is 42 degrees. When the boat moves 15 feet closer to the cliff, the angle of elevation increases to 54 degrees. How tall is the cliff?
Sunday, March 13, 2016 by Lily

MATH
As dry air moves upward, it expands and in so doing cools at a rate of about 10C for 100m rise, up to about 12 km. a) If the ground temperature is 220, write a formula for the temperature at height x km. Answer: b) What range of temperature can be expected if a plane takes ...
Sunday, March 13, 2016 by samantha

MATH
A contractor purchases gravel one cubic yard at a time. (a) A gravel driveway L yards long and 6 yards wide is to be poured to a depth of 1 foot. Find a formula for n(L), the number of cubic yards of gravel the contractor buys, assuming that he buys 12 more cubic yards of ...
Sunday, March 13, 2016 by ally

math
you deposit \$200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be \$221? is 1 year the answer?
Sunday, March 13, 2016 by Misty

Math
What equation would I write for this problem. Please help. On Tuesday at noon there were 4 inches of snow on the ground. Then it snowed at a rate of x inches per hour for 7 hours. By Tuesday at 7:00 p.m. there were 25 inches of snow on the ground.
Sunday, March 13, 2016 by Patrick

math
2/5 of a pool was filled with water. after pouring out 5/7 of the amount of water in the pool, 62 liters of water was needed to fill the pool completely. Find the amount of water needed to fill up the empty pool
Sunday, March 13, 2016 by sda

math
a concert was held in a school. students tickets cost 5 dollars and regular cost 8 dollars. The school sold 284 tickets for 1600 dollars. Find the number of student tickets and the number of regular tickets sold.
Sunday, March 13, 2016 by sda

Math
A recipe for salt dough is one part flour and three parts salt. Express the amount of salt in recipe as a fraction. If you double the recipe to make the dough for crafts,using two cups of flour,how much salt will you need?
Sunday, March 13, 2016 by OBINNAYA ELUWA

math
A map's key shows that every of 5 inches on the map represents 200 miles of actual distance. Suppose the distance between two cities on the map is 7 inches. What is the actual distance between the two cities? Write the rule you used to find the actual distance.
Sunday, March 13, 2016 by lia

Math
Sunitha is interested to find the Relation between the diameters of Jupiter and the earth.From the given data,it is known that the volume of Jupiter is 729 times the volume of earth.she concluded that the diameter of Jupiter is 9 times the diameter of the earth.prove this.
Sunday, March 13, 2016 by Shridevi

math
a cylindrical vessel without lid is made from a sheet of metal find the area of metal required if the length of the vessel is 35cm and its diameter is 28cm.
Sunday, March 13, 2016 by akash tiwari

math
(x - 2)10; 8th term (2x + y)8; middle term
Sunday, March 13, 2016 by mico

math
(x - 2)10; 8th term
Sunday, March 13, 2016 by mico

Math
you deposit \$200 in an account earning 3.5% simple interest. How long will it take for the balance of the account to be \$221?
Sunday, March 13, 2016 by Misty

Math
The percent of sales tax is 6%. What is the sales tax on a skateboard that costs \$98?
Sunday, March 13, 2016 by Mildred

math
an item is \$125, but it's going on sale for \$81.25. what is the percentage of the discount?
Sunday, March 13, 2016 by susan II

math
An isosceles triangle has a base of 20 cm. The vertex angle is 82 . Find the length of Each of the two equal sides of the triangle.
Sunday, March 13, 2016 by meme

Math
There are 12 gum balls,(each a different color), in a bag. One of them is red. What is the probability of reaching into a bag without looking & selecting a color that is not red?
Saturday, March 12, 2016 by Cindy

Math
Prove that tan3x-tan2x-tanx=tan3xtan2xtanx
Saturday, March 12, 2016 by trouble

Math
If a parallelogram has a base of 13 mm and an area of 78 mm2 what is the height? 78/13 = 6 H = 6mm
Saturday, March 12, 2016 by Sue

Math
Two bases of a trapezoid equal 16 km and its area equals 32 km^2. What is its height? 16/2 = 8 32/8 = 4 (8 + 8) x 4 16 x 4 = 64 64/2 = 32 Height = 4 km^2
Saturday, March 12, 2016 by Sue

math
what percent of 300 is 60
Saturday, March 12, 2016 by liam

math
In a group of 30 soldiers have food enough for 40 days.how many soldiers should leave the group so that food is enough for 100 days? Find it
Saturday, March 12, 2016 by bishrant

Math
The ratio between the height of the in a sink (h) in centimeters and the number of minutes it has been filling (m) is 0.95. The sink has been filling for 40 minutes. What is the height of the water in the sink.
Saturday, March 12, 2016 by Jennifer

Math
One number is 10 less than twice a second number. Find a pair of such numbers so that their product is as small as possible. These two numbers are_ and _. (Use a comma to separate your numbers.) The smallest possible product is_. The number are NOT 5,15 or 15 and 5
Saturday, March 12, 2016 by Barb

Math
Use equal intervals to make a frequency table for the average number of movies per person. You do not need to show tally marks. Country Average Number of Movies Turkey 0.5 Japan 1.2 UK 1.3 Finland 1.3 Austria 1.5 Germany 1.8 Spain 2.2 Sweden 2.2 Denmark 2.2 Switzerland 2.5 ...
Saturday, March 12, 2016 by math

math
Given: __ AB ∥ __ DE m∠BAE=70°, AD=AE. Find: m∠DAE. Sorry if format is terrifiying or broken.
Saturday, March 12, 2016 by HALP ME

MATH
Mr. Davis wants to buy some oranges. He visits a local grocery store and finds that 6 oranges cost \$2. Write an equation that represents the relationship between the number of oranges, n, and their total cost, c. Express the rate of change in simplest form, if necessary.
Saturday, March 12, 2016 by John Doswell

college math
The mass of Saturn is about 5.688 10^23 metric tons. The mass of the sun is about 1.998 x 10^27 metric tons. About how many times the mass of Saturn is the mass of the sun? Give answer in scientific notation. The mass of the sun is about ----- times the mass of Saturn.
Saturday, March 12, 2016 by angella

math
a retailer buys an article at a discount of 15% on printed price from a wholesaler. He makes up the price by 10%. Due to competition in the market, he allows a discount of 5% to buyer. If the buyer pays rupees 451.44 for the article inclusive of sale tax at 8% then find the ...
Saturday, March 12, 2016 by rushil

Math
21 less than Craig's height is 50
Saturday, March 12, 2016 by Anonymous

MATH Help!
Mr. Davis wants to buy some oranges. He visits a local grocery store and finds that 6 oranges cost \$2. Write an equation that represents the relationship between the number of oranges, n, and their total cost, c. Express the rate of change in simplest form, if necessary.
Saturday, March 12, 2016 by John Doswell

Math
A hospital was out of juice at the end of September. They bought 200 cases on Oct. 1 at \$10.00 each. and 200 more cases on Nov. 1 for \$12.00 each. There were 100 cases left at the end of Oct. What would be first case expensed on Nov. 2 using the average costing method?
Saturday, March 12, 2016 by Angela

Math
The sum of the first and fourth terms of an arithimetic sequences is 2 and the sum of their squares is 20 1. Find the common difference 2.find the sum of the first eight terms of the squence
Saturday, March 12, 2016 by Ishimwe

Lab Math
What is osmolarity of a 0.20M MgSO4 solution, which is 50% dissociated?
Saturday, March 12, 2016 by Kay

math
Raina's Coffee Shop makes a blend that is a mixture of coffee types A and B. In one bag of the blend, there are 5 kilograms of type A. Eight bags of the blend are a total of 80 kilograms. How many kilograms of type B are there in one bag. what is the equation and answer.
Saturday, March 12, 2016 by sheri

Math
find both unit rates. 30 white cars for every 12 red cars?
Saturday, March 12, 2016 by Anonymous

math
The region bounded by y = x^2 and y = 4 is rotated about the line y = -1. The volume of the solid generated is given by
Saturday, March 12, 2016 by dee

math
If the curves of f(x) and g(x) intersect x=a and x=b and if f(x)>g(x)>0 for all x on (a,b) then the volume obtained when the region bounded by the curves is rotated about the x-axis is equal to
Saturday, March 12, 2016 by dee

math
The base of a solid is the region bounded by the parabola x^2 = 8y and y=4. Each cross section perpendicular to the y-axis is an equilateral triangle. Find the volume.
Saturday, March 12, 2016 by dee

math
Find the area and perimeter of a room with dimensions of 8,5 metres by 9,3 metres
Saturday, March 12, 2016 by Dalene

Math
John chooses a 5-digit positive integer and deletes one of its digits to make a 4-digit number. The sum of this 4-digit number and the original 5-digit number is 52713. What is the sum of the digits of the original 5-digit number?
Saturday, March 12, 2016 by Amitabha

Math
Vasya wrote down several consecutive integers. Which of the following could not be the percentage of odd numbers among them? (A) 40 (B) 45 (C) 48 (D) 50 (E) 60
Saturday, March 12, 2016 by Amitabha

Math Vector
ABCDEF is a regular hexagon. Show that vecotr AB+AC+AD+EA+FA=4AB
Saturday, March 12, 2016 by Rabin

math
A baker buys some eggs at 18k each. He finds out that 8 of them are broken,he sells the rest at 24k each and makes a profit of #2.88. How many eggs did he buy?
Saturday, March 12, 2016 by Ann

Math Vector
ABCDEF is a regular hexagon. Show that vecotr AB+AD+FA+EA=3AB
Saturday, March 12, 2016 by Rabin

math
find the volume of iron required to make an open box whose ,external dimensions are 36 cm *25 cm *16.5 cm, the box being 1.5 cm thick throughout . if 1 cm ^3 of iron weights 8.5 grams , find the weight of the empty box in kilogramsfind the volume of iron required to make an ...
Saturday, March 12, 2016 by yasir

math
Construct a quadrilateral ABCD if AB=3.5cm, BC=4.5cm, CD=6cm, angle ABC=135Âº and angle BCD=60Âº.measure AD
Saturday, March 12, 2016 by rizwin

Math
ratios of opposite angles of a cyclic quadrilateral is 5:4 find the angle
Saturday, March 12, 2016 by Abhishek