Friday
October 9, 2015

Analytic chemistry
A solution of HClO4 was standardized by dissolving 0.3745 g of primary standard grade HgO in a solution of KBr. The liberated OH- required 37.99 mL of the acid to be neutralized. Find the molarity(M) of HClO4. The given balanced chemical equation is: HgO + 4Br- + H20 ===> ...
Wednesday, January 21, 2015 by Smile

Science- urgent-review
what type of galaxy do astronomers consider to be the oldest? It's urgent because I am studying for a grade 9 exam but I dont know what this is.. please help.
Tuesday, January 20, 2015 by thi

math
James needs to bring his grade up to a B (80) in reading. What does he need to get on his next quiz? Quiz 1:77 Quiz 2:81 Quiz 3:74 Quiz 4:?
Monday, January 19, 2015 by Sabrina

Uniform Motion Related Problem Port A is 25 km downriver from port B. At noon a tugboat leaves port B and travels upstream at 15 kph. At 3 p.m. a hyrodrofoil leaves Port A travelling upstream at 50 kph. At what time will the hydrofoil pass the tugboat?
Monday, January 19, 2015 by Krystal

Uniform Motion Related Problem Jessie has a 15 km head start on Melvin. How long will it take Melvin to catch Jessie if the latter travels at 70 kph and the former at 100 kph?
Monday, January 19, 2015 by Krystal

Uniform Motion Related Problem Two planes leave an airport at 2 p.m., one flying south at 450 kph, the other flying north at 675 kph. At what time will they be 3 600 apart?
Monday, January 19, 2015 by Krystal

Uniform Motion Related Problem Two cars starting from the same point travel in opposite directions. Car A travels at 80 kph and car B at 110 kph. After how many hours will the cars be 760 km apart?
Monday, January 19, 2015 by Krystal

Uniform Motion Related Problem Two cars, 210 km apart, met each other in 2 hours. If one car travelled at 60 kph, at what rate did the second car travel?
Monday, January 19, 2015 by Krystal

Uniform Motion Related Problem Chester drove his car at 8:00 a.m. at speed of 45 km/hr. At 9:15a.m. Michael followed with his car. What should be Michael's speed so as to be able to overtake Chester at 1:00 p.m.? How far has Chester travelled when Michael overtook him?
Monday, January 19, 2015 by Krystal

Uniform motion Related Problem Five boy scouts biked to Caliraya lake at 5 km/h. their scout master gave them a ride back home in his pickup car, at 20 kph. Find the hiking time if it 6 hors longer than their riding time.
Monday, January 19, 2015 by Krystal

-2(3r+4)= -5r-8-r Answer I got r=r Question 2 14+8w=4(8+2w) I have 14=48. No solution
Monday, January 19, 2015 by Kent

which of the following has lowest vapour pressure ? 1 water 2 bromine 3 ethyl alcohol 4 ether
Monday, January 19, 2015 by abdul sattar

Maths lit Business studies Economics History
im in grade 10 and i want to know what jobs can i do with these subjects
Sunday, January 18, 2015 by Nompumelelo Mhlongo

Can you check the following? 10. A store pays \$10 for a bracelet, and the markup is 115%. A customer will also pay 5 1/2% sales tax. What will be the total cost of the bracelet to nearest cent? t = 1.15 x 10 t = \$11.5 (markup price) t = \$10 + 11.5 t = \$21.50 (cost of bracelet ...
Friday, January 16, 2015 by Alexis

sixteen teams compete in a single elimination basketball tournament (one loss and you're out). How many games must be played to determine a champion?
Friday, January 16, 2015 by ary

How might the history of the United states be different if the first European settlements had occurred on the west coast instead of the east coast
Thursday, January 15, 2015 by Anonymous

Write an equation you can use to find the length of the rectangle. area=72 m^2. 8m=length xm=width My equation is 8x=72 Am I correct?
Thursday, January 15, 2015 by Stephanie

math
a recent survey was conducted on 6 grade students. Of those surveyed, 180 of the students prefered basketball over football. if the 180 students was 5/8 of the total students surveyed, how many total students were surveyed? write an equation to model this situation and then solve
Thursday, January 15, 2015 by kenzcow

Garrett reads 2.8 pages in 3.5 minutes how much does Garrett read in 31.5 minutes
Thursday, January 15, 2015 by ary

1/15 =3/5m For my answer, I put m= 1/5 Is that correct?
Wednesday, January 14, 2015 by Tam

Julian wants to put a border around two sides of his rectangular shaped garden. he has a 12 foot piece of lumber that will be cut into 1/3 foot pieces. how many 1/3 foot pieces can Julian cut from the lumber? 12 divided by 1/3
Tuesday, January 13, 2015 by Joe

The total cost for renting a kayak is represented as 25+5.50m. What is the constant in the expression 25+5.50m? Show work.
Monday, January 12, 2015 by Kennedy

given that triangle ABC~ triangle XYZ, angle a=50, angle x=(2x+5y), angle z= (5x+y), and that angle b =(102-x), find angle z.
Sunday, January 11, 2015 by Monica

An organic compound is composed of C, H and O. A 0.1005 g sample of this is combusted, producing 0.2829 g CO2 and 0.1159 g of H2O. What is the empirical formula of this compound? If the compound has a molar mass of 14 g/mol. What is the molecular formula?
Saturday, January 10, 2015 by Sim

if an elephant's heart beats 25 time a minute, how many days does it take to beat a million times?
Friday, January 9, 2015 by ary

algebra
Is there a site or someone who can help me, im not getting the basic algebra...I need someone or a web site that will help me understand the basics of algebra. PLZ HELP Im in 8th grade
Thursday, January 8, 2015 by Audy

Write a real-world situation that could be modeled by the equation 24/y=3. Then solve the problem. My answer: There are 24 seats available at the movies. There were total of 3 rows after the seats were divided and more seats on each row. Did I solve this problem correctly?
Wednesday, January 7, 2015 by Stephon

iPhone is designing a smart phone with a square screen. The area of the screen will be 169 cm with an exponent of 2. What is the height of the screen? I think the answer is 13. Am I correct.
Wednesday, January 7, 2015 by Christine

of 109.6 million house holds, 19,508,800 watched the television show CIS during the week of October 3, 2005. what percent of american households watched CIS this week?
Tuesday, January 6, 2015 by lizzy

Math
Capacity Homework? I was doing my grade 8 math homework on capacity, and I was told to order the capacity of Vase A, B, and C from least to greatest. Vase C is a hourglass based prism, and I don't know the formula for it. Please help?
Monday, January 5, 2015 by Anonymous

Please help, what operation should I use to solve this problem? Jessica bought 10.50 pounds of potatoes. The potatoes are sold in sacks of 20 if the potatoes cost \$1.99 per pound. How much money did Jessica spend?
Wednesday, December 31, 2014 by Jaliyah

S 4 cups of cereal. The box states that one serving of cereal is equal ti 4/5 cup. How many servings did Sandra eat? Please explain and show work!
Friday, December 26, 2014 by ALEXANDAR

What two expressions could be used to represent the cost of a speeding ticket on (1) streets and highways and (2) in construction and school zones?
Monday, December 22, 2014 by Ariana

If 6.5g of zinc reacts with 5.0g of HCL,according to the reaction.Zn + 2HCL:zncl2+h2 Which substance is the limiting reaction? How many grams of the reactant remains unreactant? How many grams of hydrogen would be produce?
Monday, December 22, 2014 by Ettefa Tirfessa

Can someone tell me a brief summary on how to make an L.E.D light up when connected with only wires, nutes and bolts, battery and a paperclip.
Thursday, December 18, 2014 by thi

Word problem: Wes saw fireworks at 28 degrees; Abby (who was standing 20 m away from him) saw the same fireworks at a 40 degree angle. Where was Abby standing? (The answer is 61.8m, but I don't know how to figure it out or sketch the triangle).
Wednesday, December 17, 2014 by Iza

physics
9th grade physics sketch a picture of the initial total velocity for the projectile when the angle is at 0 degrees, 30 degrees and 60 degrees. Resolve each into vertical and horizontal components. No velocity given
Wednesday, December 17, 2014 by shilpa

1. Write a phrase in words for each algebraic expression. A. "t - 29" Answer:29 minus t B. "a take away 16" Answer:16-a Write an algebraic expression with two variables and one constant. Answer: 150 + xy Did I answer the questions correctly?
Wednesday, December 17, 2014 by Stephon

what is the reason why we have an order of operations? Explain and provide an example.
Wednesday, December 17, 2014 by Alicia

Can you check these problems? 1. 4x^2 + 3x - 4x +5 = 4x^2 - x + 5 2. m - n + m - n - n = 2m - 3n 3. (7x + 5 - 3y) - (-3x - 5 +4y) = 7x + 3x -3y + 4y + 0 = 10x - y = 0 4. m/8 - 9 = 5 m/8 = 5 + 9 m = 14/8 m = 7/4 = 1 3/4
Wednesday, December 17, 2014 by Alexis

rachel wants to reduce the size of her photo. Which factor listed below would scale down the size of her picture the most? A. 5/8 b. 11/16 c. 3/4 d. 8/5 trying to help my son with his math …have no idea about this.. could someone explain it to me?
Tuesday, December 16, 2014 by keaghan black

Define a variable. Then write each phrase as an algebraic expression. 1.Three more pancakes than his brother ate. explain why is this the answer
Tuesday, December 16, 2014 by Genesis

Teacher has 27 students. She asks the students to form as many groups of 4 as possible. How many students will not be in a group?
Monday, December 15, 2014 by Anonymous

Can you check these? 3. Simplify (56/8+3)*2-1 = (7+3)*2-1 = 10*2-1 = 20-1 = 19 9. A spool of lanyard is 21 yards long. If it is cut into pieces that are each 1.75 yards long, how many pieces of lanyard will there be? Ans:21/1.75 = 12 pieces 12. (3/5)x - 10 = 1/6 Ans: (3/5)x = ...
Monday, December 15, 2014 by Alexis

what are the prime factorization of 88? I need help!
Sunday, December 14, 2014 by jamar

Three different rectangles have an are of 28 square units. What are the possible whole-number dimensions of the rectangles? Can someone please help me how to solve this problem?
Sunday, December 14, 2014 by Jamar

Complete the following statement. As the value of n in the expression (1/4)^n increases, the value of the expression is? I need help with this question.
Sunday, December 14, 2014 by Jamar

To find the surface area of a box, add the areas of the faces: 2(lw) + 2(lh) +2(wh). What is the surface area of the box below? H=8m W=5m L =11m My answer is 366m.
Sunday, December 14, 2014 by Stephon

john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
Saturday, December 13, 2014 by Anonymous

john is walking at such speed so that his kinetic energy is 20 J, what is his speed? It started to rain John runs at a rate of 4.2 m/s find the change in KE.
Saturday, December 13, 2014 by Charlotte

why does a planet's orbital radius represents that planet's average distance from the sun and not its exact distance?
Friday, December 12, 2014 by Thi.

Algebra 1 Ohio 8th grade standards
Got a problem here. Can someone explain how to write an equation in slope intercept form for the line that passes through the point (4,2) and is perpendicular to the graph y=1/2x+1.
Thursday, December 11, 2014 by lawyer

Anna walked 8 miles in 3 hours. Juan walked 14 miles in 5 hours. Are these rates in proportion? 8/3 divided 3/3 = 2.66/1= 2.66 14/5 divided 5/5= 2.80/1= 2.80
Thursday, December 11, 2014 by kyron

guys I don't know what career i can do coz I chose math literary - business studies-geography- tourism so if you can help mi plz guyz
Thursday, December 11, 2014 by marlvin

Science Help
Drew is walking back up the best hill in the neighborhood 24* grade. He's pulling on the empty 2.1kg sled with a force of 18N at an angle of 55* with the hill. He's walking with a constant velocity, what is the coefficient of friction?
Thursday, December 11, 2014 by Toni

Create a number line model that represents the equation below. -5 x -2 = 10 Can some help me please?
Thursday, December 11, 2014 by Ben

At lunch 3 1/4 small pizzas were equally devided into 4 people one person eats 1/4 of what he was given how much of a whole pizza did that person eat
Wednesday, December 10, 2014 by April

Lian's dog is 456 millimeters tall. How many centimeters tall is Lian's dog? Is 4.56 centimeters the correct answer?
Wednesday, December 10, 2014 by jamar

Estimating sums and differnces of fractions
Hello! My 10 year old daughter is having trouble understanding these preparation questions from her math teacher. I know the answer but I don't know how to explain it to her.. I'm sorry if that doesn't make any sense. When I was in 5th grade they taught us ...
Wednesday, December 10, 2014 by Mrs. Trisha

can you convert 154 minutes to total hours in a week? I don't know how to convert
Tuesday, December 9, 2014 by reid

math
alan, gil, and deb's point in a video game was in the ratio 2:3:4.deb scored 114400 points. how many points did gill score? how many points did they score in all PLEASE HELP but can you make your answer so that I can understand I am in 6th grade but I am not the that smart...
Tuesday, December 9, 2014 by emily

When choosing a snack it is important to select a food that contains a large amount of these essential nutrients in comparison to the caloric value of the food. A.vitamins/nutrients B.vitamins/minerals C.vitamins/proteins D.vitamins/vegetables My answer:A
Tuesday, December 9, 2014 by Anonymous

Gino wants to travel from home to school. Find how many routes are possible if he does not travel in a northerly direction.
Tuesday, December 9, 2014 by ary

It is important to choose simple carbohydrates for breakfast to get you started for your day. True or False My answer: True
Monday, December 8, 2014 by Anonymous

Math Help
1.Of the 80 eith-graders, 32 are going on the class retreat. What percent of the eith grade going on the retreat? A. 25% B. 55%*** C. 40% D. 32% 2.What is the sale price for a pair of shows that was originally prices at \$54.99 and now is 20% off? A. \$38.49 B. \$41.24 C. \$43.99...
Monday, December 8, 2014 by Callie

As a result of the first Continental Congress.. A) Colonists agreed to obey most of Britain's rule B) the declaration of right was created. C) king George agreed to go along with most of the colonist demand I think it letter b
Thursday, December 4, 2014 by edu

Patrick Henry said, "I am not Virginian, i am an american" in order to ... A.persuade colonists to join forces B.express his anger at the south C.ask colonists to abolish slavery I think it C.
Thursday, December 4, 2014 by edu

the sum of twelve divided by twice a number
Thursday, December 4, 2014 by jim

how do i round and divide whith decimals????????????????????????????????​????????????????????????????????????????​????????????????????????????????????????​?????????????????????????????????????
Thursday, December 4, 2014 by caitlyn

there is a gameboard and the arrow has landed on seven.what is the probability of spinning a number larger than 6 on the spinner?
Thursday, December 4, 2014 by caitlyn

"I'd done a car for one of her patients, who told her about me." Which of the following describes the part, "who told her about me." A. nominal clause B. adjectival clause C. infinitive D. gerund phrase Is the answer, B, the adjectival clause describing...
Wednesday, December 3, 2014 by Jim

Which of the following correctly describes this sentence? It looms menacingly over the road from the roof of a farmhouse, a flying reptile with a seven-foot wingspan. A. Simple B. Complex C. compound D. compound-complex I felt it was a simple sentence.
Wednesday, December 3, 2014 by Jim

Abraham earns \$11.50 an hour. How many hours will Abraham have to work to earn \$483? Please Show Work!!!!
Wednesday, December 3, 2014 by ariana

Question- These plants thrive in warm climates. My answer please tell me if i'm right- The verb is thrive- Is thrive a transitive or intransitive verb? I put intransitive, am i right?
Monday, December 1, 2014 by bubbles

A car driving cross-country traveled 180 miles in 4 hours. At this rate of speed, how many miles further will the car travel in the next 3 hours? My answer is 135 miles. Is my answer correct?
Sunday, November 30, 2014 by Stephon

The ratio of boys to girls at a day care cent is 5 to 4. Which of the following cannot be the total number of children at the center? A. 27 children B. 54 children C. 60 children D. 72 children Is the answer 60. The reason I chose 60 children is because the total number of ...
Sunday, November 30, 2014 by Stephon

The staff of the Westpoint Public Library signed up 6 volunteers in the last 21 days. If the library staff continues to sign up volunteers at this rate, how many new volunteers will they get in the next 7-day week? 2 volunteers is my answer. Is my answer correct?. If not I ...
Sunday, November 30, 2014 by Stephon

The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
Sunday, November 30, 2014 by Stephon

math
how do you do 6th grade math cryptic quiz ?
Saturday, November 29, 2014 by hi

The ratio of wins to losses for a basketball team is 2:3. Which of the following is a possible total number of games? A. 7 games B. 14 games C. 25 games D. 26 games Can someone show me how to solve this problem please?
Saturday, November 29, 2014 by STEPHON

Lashonda found a recipe that makes 2 1/2 dozen cupcakes and requires 1/4 cup of vegetable oil. If she makes 90 cupcakes for a family reunion picnic, how much vegetable oil will she need?
Thursday, November 27, 2014 by DerpyPegasus33

Here are the instructions!(: Copy a symbol or an illustration to represent each item. Write a definition of each term in your own words. Write a sentence that includes the term and the words Mexico City. Thank you!(:
Monday, November 24, 2014 by Susie

What are the definition for rural decline, spatial inequality, standard of living, and urbanization. Please help me! Thank you a sixth grader Susie
Monday, November 24, 2014 by Susie

English Writeacher
I want to thank you for advice and help in my English course. On my 9 page final I missed 7 questions, but what was so bad it was on complex and compound complex sentences my weakness I knew. I made 93 on final. I have a 96.83 grade average for course. Again Thank You for help...
Saturday, November 22, 2014 by Karen

The manager turns on the restaurant's two neon signs at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. In how many seconds will they blink together again? Explain how you got your answer. Need help please, thank you!
Thursday, November 20, 2014 by lVORY SMITH

what does the statement (the properties of salts are different from the properties of the elements that go into making them) mean include an example in your answer.
Thursday, November 20, 2014 by yahir

what does the statement "the properties of salts are different from the properties of the elements"mean.
Thursday, November 20, 2014 by isaac

The depth of water(d metres) in a harbour is given by the formula d = a+bsin(ct) where a, b and c are constants, and t is the time in hours after midnight. It is known that both b and c are non-zero and 20<c<35. If t=midnight, d=5; if t=noon, d=5; if t=1300, d=7; and if...
Thursday, November 20, 2014 by Jessica

Which is not an example of stimulus A. the smell of baking bread B. the sound of your alarm clock in the morning C. the scream you give when someone scares you d.the light from the sun I think it is C. because the scream is the reaction to the stimuli, someone doing the ...
Wednesday, November 19, 2014 by E6

I'm helping my daughter with her homework and I'm trying too see if we are doing it correctly it says round to the neared tenth of a square kilometer Problem- 296.37 Her answer was 296.47 km My answer - 300.00 km Problem: 0.44 km Her answer was 44km Problem 60.87 km ...
Wednesday, November 19, 2014 by Meka

Ms sue I'm sorry I'm totally confused its says round to the nearest tenth in a square kilometer How can I round 297.85 km to the nearest tenth? Her answer was 297.85 but I'm thinking it should have been 300.00 kilometer because the yes place is 5 or more
Wednesday, November 19, 2014 by Meka

Round the area of each country to the nearest tenth of a square kilometer . Marshall Islands 181.30 My daughter put 181.30 because she said the number in tens place was 5 and under
Wednesday, November 19, 2014 by Meka

What is an expression that can be used to find 4 x 275 using mental math and properties of numbers?
Tuesday, November 18, 2014 by Joe

What is the impulse that must be applied to stop a 90-kilogram running back on a field at a speed of 4.5 meters per second. (Hint:remember the relationship of impulse and change in momentum)
Tuesday, November 18, 2014 by mya

how many flowers do I have if...1/4 are pink...2/5 of remaining flowers are red...18 are yellow
Tuesday, November 18, 2014 by logan

What is an elegiac broadside? a large sheet of paper sold on the streets an elegant poem put to music a mournful, plaintive ballad a sensational disaster I don't have a clue what Elegiac means i was think it was a poem because that's what I'm studying . but can you...
Tuesday, November 18, 2014 by Priscilla Jonathan

what number is 15% of 50? I'm working this problem two different ways and I'm getting different answers. my two answers are 30 or 7.5. Can somebody tell me which answer is correct?
Sunday, November 16, 2014 by Stephon