Tuesday

February 28, 2017
Total # Posts: 341

**Mathematics **

A ship sails 50 km on a bearing of 70 degrees. How far North is it from its starting position.

*February 17, 2017*

**math**

Amber has a piece of licorie that is 10 feet long. She cuts it into three pieces for her friends. The 1st piece is 4.25 feet longer than the second piece. The 3rd piece is 2.24 feet longer than the second. How long is the 3rd piece?

*February 12, 2017*

**math**

Zach's rope is 15 feet long. He cuts it into three pieces. 1st piece is 3.57 ft longer than the 2nd piece. 3rd piece is 2.97 feet longer than the 2nd piece. How long is third piece?

*February 12, 2017*

**math**

ned folded a set of origami figures. Of this set, 5/8 are cranes and 1/6 of the remainder are frogs. The rest are grasshoppers. What fraction of the origami figures are grasshoppers?

*January 18, 2017*

**math **

Ben sells 7/12 of the pottery he made. Of the remaking pottery, 3/5 are vases and the rest are bowls. What fraction of all the pottery is the unsold bowls?

*January 17, 2017*

**math**

Mrs. Kong uses 1/3 of a stick of butter in a pie. She uses 5/8 of the remaining butter in a cake. What fraction of the stick of butter is left

*January 17, 2017*

**math**

justin spends 7/9 of his homework time on math and social studies. He spends 4/7 of this time on math. What fraction of the total time does he spend on social studies?

*January 17, 2017*

**math**

maggie has 20 ribbons. Of them, 2/5 are polka dotted ribbons. How many ribs are not polka-dotted?

*January 11, 2017*

**math**

there are six different kinds of fruit pies in a baker. Each pie is the same size and is cut into 8 equal slices. Mr. Javier buys a slice of each pie. How many pies did Mr. Javier buy altogether

*January 11, 2017*

**mixed numerals**

Yesterday, Joe's Snack Shack went through 8 bottles of ketchup. If they used 1/5 as much mustard as ketchup, how many bottles of mustard did they go through?

*January 1, 2017*

**math**

1 1/3

*January 1, 2017*

**math**

On Friday, Steven sold 4 pitchers of lemonade from his lemonade stand. On Saturday, he sold 1/3 as much lemonade as on Friday. How many pitchers of lemonade did Steven sell on Saturday?

*January 1, 2017*

**math**

what is 8/9 - 17/54

*November 21, 2016*

**algebra**

How do I work out what the x and y equal in this equation: 4 over x plus 5 over y equals 21

*November 21, 2016*

**Income tax**

Steve and Sue are married with three dependent children. Their 2015 joint income tax return shows $389,000 of AGI and $60,000 of itemized deductions made up of $30,000 of state income taxes and $30,000 of charitable contributions.

*November 21, 2016*

**math**

James is painting his 10 by 8 foot bedroom wall that contains a 2 by 3 foot window. How many square feet of wall does he need to paint

*November 15, 2016*

**math**

lily plants 80 seeds in her garden. Half of them are carrots. The rest are pumpkins and radishes. There are 6 more pumpkin seeds than radish seeds. How many radish seeds are there? How many carrot and radish seeds does Lily plant?

*November 7, 2016*

**Math**

Mr. Jackson sold 3 computers in the first year. In the second year he sold 4 times as many computers. In the third year he was able to sell 6 times as many computers as the first year. How many did Mr. Jackson see in three years.

*November 6, 2016*

**math**

At a supermarket, pineapple juice sells at $1 per pint (16 oz). Greg wants to buy eighteen 40 oz cans of pineapple juice from the supermarket. How much does he have to pay altogether.

*November 2, 2016*

**math**

5x - 5y = -5 4x + 2y = 20

*October 26, 2016*

**Physics**

How much heat must be added to 1-kg of 0 degrees Celsius water to turn it into water at 50 degrees Celsius? If the water had been ice at 0 degrees Celsius, would that increase, decrease, or not change the amount of energy required?

*October 24, 2016*

**math**

michelle has some stamps. Her sister has half as many stamps as does. They have 1080 stamps in all. Home many stamps does Michelle have

*October 19, 2016*

**math**

how to write the expression 25 less than 12 groups of 15? 25-12(15)... is this correct

*October 18, 2016*

**Maths**

A rectangle has an area of 36m2 list all possible lengths of sides using while numbers it could have

*October 16, 2016*

**Math**

UB 650x 850 =552500 50x 50=2500 552500/2500=221

*September 24, 2016*

**Algebra**

A bird leaves his nest and travels 20 miles per hour downward for x hours. On the return trip the bird travels 4 miles per hour slower and has six miles left after x hours. What is the distance of the entire trip? How long does the entire trip take

*September 8, 2016*

**Math**

Complete the data set with one value so the mean of the data is 13 using numbers 10, 14, 8, 16, 12, x. X=18 Which value can you remove from new set of data so that mean is 14?

*September 8, 2016*

**Math**

-3 =8x-4y solve for y

*September 8, 2016*

**Math**

A bird leaves his nest and travels 20 miles per hour downward for x hours. On the return trip the bird travels 4 miles per hour slower and has six miles left after x hours. What is the distance of the entire trip? How long does the entire trip take

*September 8, 2016*

**Math**

What is 1/10 of 300,000?

*August 25, 2016*

**precal**

Find all solutions of the equation in the interval , 02π . =2sin2x−2cosx Write your answer in radians in terms of π . If there is more than one solution, separate them with commas.

*August 8, 2016*

**math**

find the area of a squad that has sides of length 96 inches

*June 29, 2016*

**Math**

99,900

*June 1, 2016*

**Math**

there are 100,000 narwhals only 100 of them have horns because they are males the rest are females so they don't have horns how many narwhals don't have horns :P

*June 1, 2016*

**math**

there are 8 people in a committee. each time they meet they shake hands with each other so that each person shakes everyones hand once each time they meet how many handshakes are there

*June 1, 2016*

**math**

finish the number pattern for the rule: 2n+1 3,5,... finish the number pattern for the rule: 4n+1 5,9,....

*May 18, 2016*

**math**

The mass of a box with 6 tennis balls is 2 kg 40 g. The same box with 10 tennis balls is 3 kg 160 g. What is the mass of the empty box?

*April 26, 2016*

**stats**

raffle with a grand prize $500., 2 second place prizes of $100., 4 third place prizes of $50.. the raffle offers 250 tickets for $4. each. what is probability model , the expected value of a single ticket and the target of $200.to be raised can they expect to raise this much ?

*April 10, 2016*

**Statistics**

Bookstore has a website for which 90 percent of their book sales are to out of state customers and not subject to the collection of sales tax . The sample proportion of all sales to out of state customers from samples of size 100 will vary in repeated sampling. The sampling ...

*April 3, 2016*

**algebra**

How do I work this problem? m=-3, (4,5)

*April 2, 2016*

**math**

Grandpa Mick opened a pint of ice crew. He gave his youngest grandchild 1/5 of the ice cream and his middle grandchild 1/4 of the remaining ice cream. Then, he gave his oldest grandchild 1/3 of the ice cream that was left after serving the others. Who got the most ice cream? ...

*March 16, 2016*

**math**

Grandpa Mick opened a pint of ice crew. He gave his youngest grandchild 1/5 of the ice cream and his middle grandchild 1/4 of the remaining ice cream. Then, he gave his oldest grandchild 1/3 of the ice cream that was left after serving the others. Who got the most ice cream?

*March 16, 2016*

**math**

At Laurita's bakery 3/5 of the baked goods are pies and the rest are cakes. 1/3 of the pies are coconut. 1/6 of the cakes are angel-food. What fraction of all of the baked goods at Laurita's Bakery are coconut pies? What fraction of all of the baked goods at Laurita&#...

*March 16, 2016*

**math**

ABCD is a rectangle of perimeter 48cm. AB=6 cm and CD=DE. What is the length of ABCD?

*March 6, 2016*

**Math**

in figure LM = 18 ft, KM=16 ft and KN=14ft what is the area of KLM

*March 3, 2016*

**Math**

How long will it take to go three tenth of an mile going 80 miles an hour

*February 23, 2016*

**business**

what ethical social political issue might arise from using wiki

*February 18, 2016*

**Science**

How many traits are involved in a monohybrid cross? How many alleles are involved? What prevents the expression of a recessive allele? When gametes form, what happens to the alleles for each trait?

*February 15, 2016*

**Amercan Literature**

The yellow cane Alexandra finds at maries house is a symbol of

*January 10, 2016*

**math**

Carla spends 6/4 hours exercising every day for 12 days. She spends 1/2 of exercise time every day lifting weights. How much time does Carla spend lifting weights during the 12 days?

*December 2, 2015*

**math**

Alli's plant has a height of 6 meters. Rajon's plant grows 3/10 meter higher. How high does Rajon's plant grow.

*December 2, 2015*

**math**

The produce manager receives 5 containers of green beans, each weighing 7 pounds. She divides the total amount of green beans into 3 equal-weight portions. What is the weight of the beans in each portion?

*November 15, 2015*

**math**

Riley told his mom that multiplying whole numbers by multiples of 10 was easy because you just count zeros in the factors and put them in the product... 7,000 x 600 = 4,200,000 Riley's mom said this strategy will not always works? Why not? Give example

*November 10, 2015*

**math**

a jeans designer offers 5 styles of jeans in 5 different colors. How many different combinations of style and color are possible?

*November 4, 2015*

**math**

Lily plants 80 seeds in her garden. Half of them are carrots. The rest are pumpkins and radishes. There are 6 more pumpkin seed than radish seeds. a. How many radish seeds are there? b. How many carrot and radish seeds does Lily plant?

*November 2, 2015*

**MATH**

MAYA had $2740 in play money and Emily had $3560. Maya had to give some money to Emily. After that, Emily had 4 times the amount of play money as Maya. How much money did Maya have in the end? How much money did Emily have in the end?

*October 22, 2015*

**math**

sam runs around a rectangular field 4 times a week. The field is 320 meters long and 240 meters wide. He runs 6 laps each time. What distance does he run in a week'

*October 21, 2015*

**Cincinnati state**

The perimeter of a volleyball court is 180 feet, anditswidth is 40 feet Find the length of the volleyball court

*September 24, 2015*

**Physics**

In a double-slit interference experiment, the wavelength is 500 nm, the slit separation is 0.150 mm, and the screen is 33.7 cm away from the slits. What is the linear distance between adjacent maxima on the screen?

*September 9, 2015*

**physical science**

A car is driving at an average speed of 100km/hr for 2 hours, then drives an average of 50.0km/hr for one hour. what was the average speed of the 3 hours? 100.0km/h 100.0km/h +50.0km/h =250.0km/3h 250.0km/3h divided by 3h =83.3km/h

*June 15, 2015*

**Chemistry**

At a deep-sea station 200.m below the surface of the Pacific Ocean, workers live in a highlypressurized environment. How much gas at STP must be compressed on the surface to fill the underwater environment with 1 × 107 L of gas at 16 atm? Assume that temperatureremains ...

*May 7, 2015*

**Chemistry**

I guess I am dumb I don't get it

*May 7, 2015*

**Chemistry**

A sample of nitrogen gas is collected overwater at a temperature of 23◦C. What is the pressure of the nitrogen gas if the atmospheric pressure is 744 mmHg? Answer in units of mmHg. Not sure of formula for this

*May 7, 2015*

**chemistry**

If the volume is 226 L at 1.7 atm, find the volume at 2.8 atm. Assume the temperature and amount of gas remain constant. Answer in units of L.

*May 6, 2015*

**statistics**

The critical Value is t=2.093 Degrees of Freedom n-1

*February 22, 2015*

**Math**

It takes Jaiden 5 and 3/4 hours to do her homework each week. It takes her 2 and 3/4 hours to complete her science and 1 and 1/2 hours to complete her math homework. How long does it take her to complete Social Studies homework? Use the numbers and symbols, listed below, to ...

*January 13, 2015*

**Chemistry**

According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.41 g of magnesium oxide. When he weighed his product after reaction, only 1.33 g of magnesium oxide was present. What is the student's percent yield?

*December 6, 2014*

**chemistry**

Can somebody please answer my question.

*December 6, 2014*

**Chemistry**

'calculate the mass in amu of 2.879 1023 xenon atoms'

*December 6, 2014*

**Chemistry**

Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.128 g on the average. What would 130. such washers weigh?

*December 5, 2014*

**Chemistry**

What volume will 823 mL of SO3 gas at 11 degrees celsius and 720 mm Hg occupy when the pressure is raised to 1.55atm and the temperature is raised to 81 degrees celsius?

*November 23, 2014*

**Chemistry**

A volume of 725 mL of a gas is collected at 105 degrees celcius and 746 torr. The gas sample wights 1.92 grams. What is this gas?

*November 22, 2014*

**Chemistry**

It takes 37.16 mL of 0.510 M HCL to neutralize 25.00 mL of NaOh. What is the concentration of the NaOH?

*November 22, 2014*

**chemistry**

2.9 in3 of mercury to its volume in milliliters and its mass in kilograms

*November 12, 2014*

**chemistry**

263 mL ethanol to its mass in grams

*November 12, 2014*

**Chemistry**

Figured that one out. Thank you

*November 12, 2014*

**Chemistry**

Iron has density 7.87 g/cm3. If 52.3 g of iron is added to 74.5 mL of water in a graduated cylinder, to what volume reading will the water level in the cylinder rise? mL

*November 12, 2014*

**chemistry**

Thank you Dr. Bob

*November 12, 2014*

**chemistry**

28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms? Can you help me please.

*November 12, 2014*

**Chemistry**

28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms?

*November 12, 2014*

**Chemistry**

Thank you

*November 8, 2014*

**Chemistry**

What would be the molarity of a solution made by dissolving 126g K3PO4 into 1500 mL of water?

*November 8, 2014*

**chemistry**

Is this correct? 3.84 mol(2 H2O/7.68)????

*October 27, 2014*

**chemistry**

Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68) How do I get the ...

*October 27, 2014*

**Chemistry**

Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68) How do I get the ...

*October 27, 2014*

**chemistry**

Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68) How do I get the ...

*October 27, 2014*

**chemistry**

Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O?

*October 27, 2014*

**chemistry**

How do I get the number of moles of H2O

*October 27, 2014*

**chemistry**

find the mass of water(H2O) needed to react with 150 grams of potassium(K)

*October 27, 2014*

**chemistry**

1/10^-8 in scientific notation

*October 27, 2014*

**chemistry**

1/10^-8 in scientific notation. I need help please.

*October 27, 2014*

**chemistry**

1/0.000015 in scientific notation. Please explain how to do this.

*October 27, 2014*

**Chemistry**

1/10e-8 in scientific notation. How do I solve this please.

*October 27, 2014*

**Chemistry**

If 525J of energy are added to a 75.5g piece of iron at 22.2 degrees celcius what is the final temperature?

*October 27, 2014*

**Chemistry**

Never mind. I got it.

*October 27, 2014*

**Chemistry**

How much energy is required to raise the temperature of a 34.4g Al bar from 20.0 to 35.5 degrees celcius?

*October 27, 2014*

**Chemistry**

How many atoms of nitrogen are in 3.00g of N2O5?

*October 27, 2014*

**Pharmacy Tech**

15gr of potassium chloride is diluted in 2 L of sterile water for injection. What is the final percent strength?

*October 9, 2014*

**Health**

19 : C microwave popcorn....

*October 8, 2014*

**world issues**

Imagine that you are advising President Obama as he develops his address to the nation on ISIS, what specific actions would you advise him to include in his strategy to deal with the ISIS crisis? (Based on the article: U.S. Weighs Direct Military Action Against ISIS in Syria) ...

*September 9, 2014*