Posts by Sam

Total # Posts: 5,365

Math
Lindsey read 2/5 of a book on Monday. She read 12 pages on Tuesday. If she still had 1/2 of the book to read, how many pages were therein the book?

Maths
A map has A scale of 1.25000.two towns are 15cm apart on the map.how far apart in real life ? answer in metres ?

Math
Thank you

Math
In order to compare to function to determine which has the greater output for the input 0, which characteristic of the function should be compared? a) rate of exchange b) slope c) x-intercept d) y-intercept is it the y-intercept?

Chemistry
What is the boiling point (in °C) of a solution of 9.22 g of I2 in 66.5 g of toluene, assuming the I2 is nonvolatile? (For toluene, Tb = 110.63°C and Kb = 3.40°C·kg/mol.)

math
In a shop, There are 25 bicycles and tricycles. There are 63 wheels in all. Find the number of bicycles in the shop.

Math
john is 30 pounds heavier than peter. their total weight 235 pounds.find johns weight

Algebra Assignment
Hey PsyDAG, I understand this. And I honestly appreciate this policy. But to be straight-up with you, I have no idea how to even start. I am very glad that you would be willing to look over my work--but the thing is I have no work to show due to the fact I have no clue what I ...

Algebra Assignment
An apple pie uses 4 cups of apples and 3 cups of flour. An apple cobbler uses 2 cups of apples and 3 cups of flour. You have 16 cups of apples and 15 cups of flour. When you sell these at the Farmer’s Market you make $3.00 profit per apple pie and $2.00 profit per apple ...

MATH
Terry has completed 15 homework problems, and Susan has completed 9. Terry is completing 10 problems per hour, and Susan is completing 12 per hour. After how many hours will Terry and Susan have completed the same number of problems? a. 3 hrs**** b. 4 hrs c. 5 hrs d 10 hrs

math 10
a British researcher developed a formula to determine walking or running speed based on hip height and stride length. The formula is s= 0.78l ^1.67/ h^1.17 where s is speed in meters per second l is stride length in meters, and hi is the individual hip height, in meters. ...

Physics
35 degrees*

Physics
A home run is hit such a way that the baseball just clears a wall 26 m high located 114 m from home plate. The ball is hit at an angle of 35â—¦ to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 2 m above the ground. ...

Physics
A particle travels between two parallel ver- tical walls separated by 12 m. It moves to- ward the opposing wall at a constant rate of 5.4 m/s. It hits the opposite wall at the sam a) What will be its speed when it hits the opposing wall? b) At what angle with the wall will the...

Algebra I
For the following system of equations, what is the x value of the solution? -x + 2y =6 6y = x + 18

Algebra I
Write an equation in point-slope form for the line through the given point with the given slope. (-3,-5); m=-2/5

Algebra I
Write an equation in point-slope form for the line through the given point with the given slope. (-3,-5); m=-2/5

math
A girl starts to walk to her school, which is 20 miles away, at 6:50 and at a rate of 3 miles per hour. After a while, her dad picks her up and drives her through the remainder of the way at 30 miles per hour. If they arrived at school at 9:00, how far did she walk?

Social Studies
thx

Algebra I
Please show me the steps to solve this: KE = ½ (900kg)*(20m/s)^2

Algebra I
KE = ½ (900kg)*(20m/s)^2

Chemistry
A student prepared a 0.03M solution of formic acid (HCHO2) and measured its PH at 25oc and it was found to be 4.67. Calculate Ka for formic acid at this temperature.what percentage of the acid is ionized in this 0.03M solution.

Chemistry
148

Algebra I
Average height of a species of tree (in feet) after a certain number of years Years----------Height 1 ------------- 2.1 2 ------------- 3.2 3 ------------- 6.8 4 ------------- 7.3 5 ------------- 11.2 6 ------------- 12.6 7 ------------- 13.4 8 ------------- 15.9 What is the ...

Algebra I
you use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for your data set is -0,993. How confident can you be that your predicted value will be reasonably close to the actual value? a. I can't be confident at ...

Algebra I
Which equation is the equation of a line that passes through (-10, 3) and is perpendicular to y=5x-7? a. y=5x +53 b.y=-1/5 x -7 c. y=-1/5x+1 d. y=1/5x +5.

Algebra I
Which equation has a graph parallel to the graph 9x + 3y = -22 a. y=3x -22 b. y=-3x + 8 c. y=1/3x + 12 d. y= -1/3x-2****

Math
The cooling system of a car has a capacity of 20 liters. If the system is currently filled with a mixture that is 60?% ?antifreeze, how much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with a solution that is 70% ?antifreeze?

PHYSICS
A 15 kg block is on a ramp which is inclined at 20 degrees above the horizontal. It's connected by a string to a 20kg mass which hangs over the top edge of the ramp. With no frictional forces taken into account, what is the magnitude of the acceleration of the 20kg block?

PHYSICS
A spring stretches by 210cm when a 135 N object is attached. What is the weight of a rubber duck that would stretch the spring by 44.9cm?

Algebra I
Write is y=1/6 X +4 in standard form using integers a. -x -6y =24 b. -x+6y = 24 c. -x +6y =4 ***** d. 6x-y=24

Math
How much of? a(n) 60% orange juice drink must be mixed with 8 gallons of a 30% orange juice drink to obtain a mixture that is 50% orange? juice?

Math
The manager of a store selling tea plans to mix a more expensive tea that costs $5 per pound with a less expensive tea that costs $2 per pound to create a 140?-pound blend that will sell for $3.80 per pound. How many pounds of each type of tea are? required?

Math
The perimeter of a rectangular garden is 108 meters. The length is 6 meters longer than twice the width. Find the dimensions of the garden.

Math
What is the word form for the number 12+0.2+0.005

Math
When doing a calculation involving zoning laws, Tim comes across the following expression: fraction numerator a minus open vertical bar a close vertical bar over denominator a end fraction, where a is either a positive or a negative number. (A) What is the value of the ...

math
There were 812 adults and half as many children at a concert. There were 96 more women than children. How many men there were?

Geometry
I need to explain how to make a triangle using a protractor and a string and the aas congruence theorem. I'm giving no angles. I was thinking draw a line find and angle then draw another line to attach to the first line get another angle and finish off triangle draw the ...

Physics
An electron is acted upon by a force of 7.00×10?15 N due to an electric field. Find the acceleration this force produces in each case: The electron's speed is 1.00 km/s . a=??m/s2 The electron's speed is 2.50×108 m/s and the force is parallel to the ...

math
hd

Physics
If a kayak can travel straight across a 50m wide river and can paddle at 8 m/s and the river flow has a current of 5 m/s west what is the maximum velocity in km/h (don't forget the direction) with the help of the current? And if the current is frustrating what is the ...

ALGEBRA I
Which equation is represents the line that passes through the points (6,-3) and (-4,-9)? a. y+4 =3/5(x+9) b. y+4=5/3(x+9) c. y-3= 3/5(x+6)****** d. y+3=3/5 (x-6)

Algebra 1
Find the slope of a line that passes through (-2,-3) and (1,1).

Physics
Tucker, from a 20 m tower, throws a ball horizontally that travels a distance of 60 m. At what speed, in m/s, is the ball thrown?

Math
A dress cost twice as much as a skirt. Mrs. Mason bought 3 dresses and 2 skirts. She gave the cashier $1000 and received $300 in change. How much did a dress cost?

Maths
A circular pond has a radius of 13m. A path goes all the way round the circumference of the pond. The path is 1-2 m wide throughout. Find the area of the path.

Organic Chemistry
Procedure: 1) Accurately weigh approximately 0.40 g of Dimethyl maleate into a 50 mL round bottom flask that possesses a ground glass joint, and record the weight. 2) Dissolve the Dimethyl maleate in 10 mL of methanol, and add approximately 5 drops of 10% solution (w/v) of ...

History
Which most accurately describe the impact of the Crusades on the Jewish community?

Math
Show sin((a-b)/2) < ((a-b)/2). Why is this true?

Math
A boy is 42 years younger than his father .In 8 years' times , he will be 1/4 times as old as his father .Find their present ages. (Answer is boy= 6, father= 48)

HISTORY
Which religious denominations were important in early Georgia? Why?

GEORGIA HISTORY
If you lived in Georgia during the colonial era, where would you go to school if you lived in Savannah? Where would you go to school if you lived in one of the parishes that were a long boat ride away from Savannah?

ALGEBRA
Ralph needs to earn a B in his Geology class. His current test scores are 82,83, 90, and 77. His final exam is worth 4 test scores. In order to earn a B​, Ralph's average must lie between 80 and 89 inclusive. What range of scores can Ralph receive on the ...

Math
A tourist traveled 10 km away from the city by bus, and then continued his journey by foot in the same direction at the speed of 5 km/h. At which distance y was he from the city in x hours of walking?

Science
When an electric current passed through water during the process of electrolysis, two gases are formed. One gas has a boiling point of -183 degrees Celsius and the other has a boiling point of -253 degrees Celsius. Has a physical or a chemical change occurred? Explain.

English Literature
In "The Call of the Wild", why did Buck end up in the Yukon Territory?

Literature
Jack London never actually set foot north of California a. true b. false *****

Pre-algebra
If a+b=c and b+c=d and c+d=e and a=7 and e=5, find a+b+c+d+e.

art
thx

Social studies
Where would you go to school if you lived in one of the parishes that were a long boat ride away from Savannah? My Answer: At a Mission

Math
A figure has vertices E(-3, 1), F(1, 1) and G(4, 5). After a transformation, the image of the figure has vertices at E'(-3, -1), F'(1, -1) and G'(4, -5). Identify the transformation. a) Reflection across the y-axis b) Reflection across the x-axis c) Rotation d) ...

Algebra
5 buckets contain a total of 100 tennis balls. How many balls are in each bucket if each bucket contains n more balls than the previous bucket? Find all the possible values for n.

math
mr tan and m town wong drove from town k to town h. they started their journeys at different times. mr tan drove at 66km/h and took 50 minutes to reach town h. mr wong drove an average spped of 75km/h.both arrived town h at 2.35pm. what is the distance from town k to town h? ...

Chemistry
Water molecules can dissociate into hydronium ions (H3O+ ,often just called H+ for shorthand) and hydroxide ions (OH-). The concentration of each of these ions in pure water is 10^-7. In other words, in pure water one out of every 10 million molecules is dissociated into a ...

Chemistry
The pH of a solution is 6.5 What are the [H+] and [OH-] of the solution?

Chemistry
What is the pH of a solution with a [OH-] of 10^-2

Chemistry
What is the pH of a solution with a [H+]=10^-8?

Language Arts
thx kiera

algebra
The inequality ?2(x + 10) ? 75 says the same thing as ?2x ? 20 ? 75. I can multiply by -2 on the left side without reversing the inequality symbol.

English
Can someone explain to me what does pre released title essay test mean,i dont get it and in my assessment shows that i have pre released title essay test.Please someone tell me what is it.Thanks

Language Arts
Which element is shared by both "Stolen Day" and "The Night the Bed Fell"? a)strong imaginations b)loving parental figures c)harsh family rules d)ill children

English III A
3. which of the following statements about early American and colonial literature is true? A) the literature primarily focuses on religious themes. B)the voices of women and minorities are absent from this period C) early American and colonial literature did not exist before ...

Honors English III A
2. Read the following Papago song. Identify its purpose. "No talking, no talking. The snow is falling. And the wind seems to be blowing backward. " A) to inform B) to persuade C) to analyze D) to express

Science
five types of microscopes in order from lowest resolution to highest

math
meredith wants to paint 3 of the walls in her room each wall has the shape of a rectangle with dimensions 10 feet by 12 feet she has 1 can of paint that will cover approixmately 420 square feet which method can meredith use to determine whether or not she has enough paint to ...

Science
Alice and Marge are studying the properties of matter. The girls cut some silver-colored magnesium sheets into 3-inch long strips and then put one strip each into test tubes: one containing water and one containing acid. Nothing happened when they added the magnesium to the ...

Science
if an atom has 17 electrons and its mass number is 35, calculate the following: number of protons, atomic number, and number of neutrons. i think there would be: an atomic number of 17, there would be 17 protons, and there would be 18 neutrons. am i correct???

Language Arts
The seashells were iridescent in the sunlight a. cloudy b. drying out c. breaking into pieces d. shimmering with colors I chose "d"

Algebra
Jaden discovers another prepaid phone plan (Plan B) that charges a flat fee of $15 per month, then $.05 per text sent or minute used. Write an equation for the cost of Plan B.

Algebra 1
Jaden discovers another prepaid phone plan (Plan B) that charges a flat fee of $15 per month, then $.05 per text sent or minute used. Write an equation for the cost of Plan B.

Science
thank you!

Science
1. An atom that loses or gains electrons is called a(n)____. isotope proton neutron ion*** 2.Which subatomic particles are most involved in chemical bonding? protons electrons*** neutrons isotopes 3.The main types of chemical bonds are___. ionic, covalent, and metallic*** ...

Algebra
For all real numbers a and b, 2a*b = a^2+b^2. True or false? If false, explain your reasoning. I'm pretty sure this is false, but I'm not sure how I would explain that?

Algebra 1
Jaden has a prepaid phone plan (Plan A) that charges 15 cents for each text sent and 10 cents per minute for calls. 1. If Jaden uses only text, write an equation for the cost C of sending t texts. a. How much will it cost Jaden to send 15 texts? Justify your answer. b. If ...

Language Arts
The author of "My Brother's Keeper", includes the line "and Jamie thought to himself, this time it must be bad" in Jamie's phone conversation with Ted in order to a. explain how Uncle Harry usually takes care of Ted. b. develop Ted as a character ...

Art
A work of art is considered prehistoric if it is:

Math
Your house is 1030 meters from school. Your friend's house is 1.5 Kilometers from school. Whose house is father from school?

PE
Which side of the health triangle corresponds to having loving relationships with others and giving and accepting help?

Language arts
The answer for the autobiographical narrative, sorry.

Language arts
I'm sorry what was the answer? I'm guessing it is B?

calculus II
A 100 gallon tank is being drained at a rate of 5 gallons per minute. A second tank containing 10 gallons of water is being filled at a rate of 4 gallons per minute. Can you find out when the two tanks will have the same amount of water in them?

Englsih 10
so the answers are right?

Englsih 10
are you sure these answers are correct

science
a hydrauli press has a ram of 30 cm diameter and plunger of 4.5cm diameter. find the the weight lifted by the hydraulic press when the force applied at the plunger is 500N

Physics
Let n represent the number of similar resistors in a circuit. Each resistor has a resistance of r. When the resistors are connected in parallel the circuit has a total resistance of R. What would the total resistance of the circuit be if the resistors were instead connected in...

physics
Two resistors of resistances 3 ohms and 6 ohms are connected in a parallel across a 9 V battery. What is the equivalent resistance and the total current in the circuit?

Compare and Contrast
Thank you Writeteacher.

Compare and Contrast
Hi, writeteacher.. I have read both books but Im still struggling with what they have in common and what they don't have in common. :(

Compare and Contrast
Hi! I need help with this assignment. I have 2 books to compare and contrast. Full Cicada Moon by Marilyn Hilton and Same But Different by Holly Robinson Peete, Ryan Elizabeth Peete, and RJ Peete. It seems like I don't have any differences and alikes in this 2 books. Can ...

math 106
Two balls are drawn in succession, without replacement, out of a box containing 2 red and 5 white balls. What is the probability that the first ball drawn is red and the second ball drawn is also red?

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