Saturday

February 25, 2017
Total # Posts: 728

**math**

14.4 answer A thank you

*May 4, 2014*

**math**

SHURGRO fertilizer contains 18% ammonia plus carbon compounds.If 80% of the ammonia contains the chemical element nitrogen, what percent of this fertilizer is nitrogen? a. 14.4% b. 18% c. 38% d. 40% e. 62% please answer and explain

*May 4, 2014*

**math**

The terms of payment on an invoice for $2835.49 are 2/15, n/45. The balance owed after a payment within the discount period is $1135.49. What was the amount of the payment?

*May 3, 2014*

**math**

Which of the following is equal to (9^-2)+(9^-1)/(81^0)(9^-2) a. 0 b. 1/10 c. 1/9 d. 3/2 e. 10 please answer and explain

*May 3, 2014*

**math**

but could you tell me how to solution the first two equation

*May 3, 2014*

**math**

3(3)+4 9+4 13 answer e thank you, Steve

*May 3, 2014*

**math**

5x-3y=3 2x-4y=-10 3x+y=(?) a. -30 b. -13 c. -7 d. 7 e. 13 please answer and explain

*May 3, 2014*

**math**

What part of y yards is f feet? a. f/y b. 3f/y c. f/3y d. y/f e. 3fy please answer and explain

*May 2, 2014*

**math**

The sum of 4 y yards and 2i inches equals a. 6iy feet b. (12y+1/6)feet c. 12 1/6 feet d. (12y+24i)feet e. 12 1/6 iy feet please answer and explain

*May 2, 2014*

**math**

The iength of a rectangle is 3 inches greater than its width and its area is 88 square inches.An equation that may be used to find the width w of the rectangle is a. 3w^2=88 b. w^2/3=88 c. w^2+3w-88=0 d. w^2-3w=88 e. w=29.3 please answer and explain

*May 2, 2014*

**math**

On the average 800 pounds of valuable oxides are obtained from every 2 tons of ore mined.What is the ratio of valuable oxides to other material in 100 tons of ore ? a. 1:400 b. 1:5 c. 1:4 d. 2:1 e. 4:1 please answer and explain

*May 2, 2014*

**math**

How many pints of flour should be used with 3 pints of milk in a recipe which call for 2 part of milk and 3 parts of flour? a. 2 b. 3 c. 4 1/2 d. 5 e. 6 please answer and expalin

*May 2, 2014*

**math**

You have a nickel, a dime, a quarter and a half dollar. A clerk shows you several items, each a different price, any one of which you could buy with your coins without receiving change. What is the largest number of articles he could have shown you? a. 8 b. 10 c. 13 d. 15 e. ...

*May 1, 2014*

**math**

A candy dealer makes up a mixture of 3 parts of candy costing him 60 cents a pound with 2 parts of candy costing him 70 cents a pound, and 2 parts of candy costing him 50 cents a pound.At what price per pound should he sell this mixture to make a profit of 25%? a. 60 cents b. ...

*May 1, 2014*

**math**

If A=2/3B,B=2/3C,and C=2/3D,what part of D is B? a. 8/27 b. 4/9 c. 2/3 d. 75 e. 4/3 please answer and explain

*May 1, 2014*

**math**

A line segment is drawn from (-8,-6)to (0,0).What are the coordinates of the midpoint? a. -16,-12 b. -8,0 c. 0,-3 d. -4,-3 e. -3,-4 please answer and explain

*May 1, 2014*

**math**

If the area of a circle is twice the area of a triangle whose base is 4 pi and whose altitude is 4, the radius of the circle equals a. square root 32 b. 2 c. 4 d. 8 e. 32 please answer and explain

*May 1, 2014*

**math**

Formerly 1/6 of a pie cost 20 cents.Now the price of 1/8 of a pie is 30 cents.The per cent increase is a. 10% b. 20% c. 33 1/3% d. 50% e. 100% My answer is d, anybody can tell me right or wrong, if wrong tell me the answer 1/6 cost 20 cent 1/8 cost 30 cent 20/100=0.2 20-30 ...

*April 27, 2014*

**math**

I had a lot of homework 7 months= 200x7=1400 5 months= 200 year= 1600 1600/100=16 200/16=12.5 so, my answer is d but I am not sure, I want to make sure the answer, Ms Sue

*April 27, 2014*

**math**

The oil burner in a certain house is used to heat the house and to heat the hot water.During the seven cold months when the house is heated, an average of 200 gallons of oil a month is used.In the remaining five months, when the house is not heated, a total of 200 gallons of ...

*April 27, 2014*

**math**

smaller area a=pi r^2 = pi 50^2 = 2500 pi larger area a=pi r^2 =pi 52 ^2 =2704 pi 2704-2500 =204 answer d thank you

*April 27, 2014*

**math**

A pond 100 feet in diameter is surrounded by a circular grass walk which is 2 feet wide .The number of square feet of grass on the walk is a. 4 pi b. 20 pi c. 196 pi d. 204pi e. 270 pi please answer and explain

*April 27, 2014*

**math**

Use this rule to find the number of feet of lumber in a log:"Take 4 inches off the diameter of the log, multiply the remainder ( in inches ) by one half ot itself, then by the length of the log in feet, and divide the product by 8." According to this rule, the number...

*April 27, 2014*

**math**

If the area of a circle is twice the area of a triangle whose base is 4 pi and whose altitude is 4, the radius of the circle equals a. square root 32 b. 2 c. 4 d. 8 e. 32 please answer and explain

*April 27, 2014*

**math**

AOD is a diameter of circle O. The coordinates of points A and D are (-11,-5)and (-3,-5)Find the area of circle O. a. 9 pi b. 16 pi c. 25 pi d. 64 pi e. 116 pi please answer and explain

*April 27, 2014*

**math**

I don't think it is easy, can you explain how to do this problem?

*April 27, 2014*

**math**

The number of diagonals, d, in a polygon of n sides is given by the formula d=n^2-3n/2. If a polygon has 90 diagonals, how many sides has it? a. 8 b. 10 c. 12 d. 15 e. 20 please answer and explain

*April 27, 2014*

**math**

Ms.Sue x + 0.25x=35 1.25x=35 x=28 35-28=7 -------------- PsyDAG x+4x=35 5x=35 x=7 thank you Ms.Sue and PsyDAG

*April 27, 2014*

**math**

A stick 35 inches long is to be cut so that one piece is 1/4 as long as the other. How many inches long must the shorter piece be? a. 5 b. 7 c. 10 d. 12 e. 15 please answer and explain

*April 27, 2014*

**math**

Martin rides to Cambridge 30 miles away from home at the average rate of 10 miles per hour.He returns on a better road that is 50% longer where he can increase his rate by 100%.How much time does he save by taking the better road on his return trip? a. 2 1/4 minutes b. 15 ...

*April 27, 2014*

**math**

1-1/5=4/5 4/5=0.8 0.8x=32 x=40 answer a thank you, Ms. Sue

*April 27, 2014*

**math**

At the end of spring training a football coach discharged 1/5 of his squad and asked the remaining 32 boysw to report on Labor Day. The number of boys on the squad at the end of spring training was a. 40 b. 80 c. 100 d. 120 e. 160 please answer and explain

*April 27, 2014*

**mathematics**

1. did you mean 1 - 1/13= 12/13

*April 24, 2014*

**mathematics**

I don't know what is the question between 1 and 2 , the question 2 has probability (what is that mean)

*April 24, 2014*

**mathematics**

The probability of choosing a 6 at random from a standard deck of playing cars is 1/13.Use this information for 1 and 3. 1. what is the complement of the event of choosing a 6 ? 2. What is the probability of the complement of the event of choosing a 6 ? 3. You roll a standard ...

*April 24, 2014*

**math**

An apple pie 10 cm in diameter costs $1.50. Then, an apple pie 20 cm in diameter should cost a. $3.00 b. $4.00 c. $4.50 d. $6.00 e. $8.00 please answer and explain

*April 24, 2014*

**math**

The probability of choosing a 6 at random from a standard deck of playing cars is 1/13.Use this information for 1 and 3. 1. what is the complement of the event of choosing a 6 ? 2. What is the probability of the complement of the event of choosing a 6 ? 3. You roll a standard ...

*April 24, 2014*

**math**

The probability of choosing a 6 at random from a standard deck of playing cars is 1/13.Use this information for 1 and 3. 1. what is the complement of the event of choosing a 6 ? 2. What is the probability of the complement of the event of choosing a 6 ? 3. You roll a standard ...

*April 24, 2014*

**math**

The base of triangle ABC is one half the altitude. The altitude of triangle DEF is one half its base. If both triangles are equal in area, what is the ratio of the altitude of triangle ABC to the altitude of triangle DEF? a. 1:4 b. 1:2 c. 1:1 d. 2:1 e. 4:1 please answer and ...

*April 24, 2014*

**Physics**

Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her minivan waiting for him. When Jack is beside Jill, she begins accelerating at the rate of 4.0 × 10−3 m/s2 in the same direction that Jack is ...

*April 23, 2014*

**math**

A pulley whose diameter is 9 inches is connected by a belt to another pulley whose diameter is 6 inches. If the larger pulley runs at 1200 revolutions per minute, at how many revolutions per minute does the smaller pulley run? a. 800 b. 1080 c. 1600 d. 1800 e. 2000 please ...

*April 23, 2014*

**math**

sorry , actuly no

*April 23, 2014*

**math**

yes

*April 23, 2014*

**math**

In triangle ABC, AF and CE meetin D. If AE=EB, BF=FC, then AD x CD/DF x DE equals a. 1 b. 2 c. 4 d. 6 e. 8 please answer and explain

*April 23, 2014*

**math**

a-x=1 b+1=x ab=? a. x^2-1 b. x^2 c. (x+1)^2 d. (x-1)^2 e. X^2+1 I don't know how to do it, any body can answer this question and step by step tell me how to do it, thank you

*April 23, 2014*

**math**

yes, answer c, thank you

*April 23, 2014*

**math**

wrong, I think is answer c

*April 23, 2014*

**math**

my answer is b, but i am not sure

*April 23, 2014*

**math**

A diver is wroking 30 meters below sea level. Another diver is taking a break on a platform directly above him that is 5 meters above sea level.How far apart are the two divers? a. 5 meters b. 25 meters c. 35 meters d. 40 meters please answer and explain

*April 23, 2014*

**math**

A=pi r^2 = pi 2^2 = 4 pi answer c am i right?

*April 23, 2014*

**math**

Square ABCD is incribed in Circle O. If the side of the square is 2 find the area of Circle O. a. pi b. 2 pi c. 4 pi d. 8 pi e. 16 pi please answer and explain

*April 23, 2014*

**math**

thank you

*April 23, 2014*

**math**

e. 208

*April 23, 2014*

**math**

that is my homewrok, i didn't omit the square root symbol from the last choice

*April 23, 2014*

**math**

The area of a triangle whose legs are in the ratio of 2:3 is 48. The length of the hypotenuse is a. square root 13 b. 8 c. 2 square root 52 d. 12 e. 208 please answer and explain

*April 23, 2014*

**math**

When the population of a town rose from a million to a + x million, the per cent increase was a. x/a % b. 100a/x % c. 100x/x-a % d. x/a-x % e. 100x/a % please answer and explain

*April 23, 2014*

**Precalculus**

Find the exact value of: Cos(inverse tan 4/3 + inverse cos 5/13)

*April 21, 2014*

**Precalculus**

If - radical 2 is squared wouldn't it still turn out to be positive 2?

*April 21, 2014*

**math**

If r = square root 3V/pi*h , by what number must we multiply V in order to multiply r by 9 ? a. 3 b. 9/2 c. 9 d. 18 e. 81 please answer and explain

*April 19, 2014*

**math**

In triangle ABC, angle B = 3, angle A and angle C = 8 angle A. How many degrees are there in angle B ? a. 15 degree b. 30 degree c. 45 degree d. 60 degree e. 120 degree please answer and explain

*April 19, 2014*

**math**

c = 2 pi r 30 = 2 pi r r=15 a= pi r^2 = pi 25^2 = 225 pi thank you

*April 19, 2014*

**math**

Arc AB of circle O contgains 72 degree and is 6 pi long. Find area of circle O. a. 9 b. 36 c. 30 pi d. 225 pi e. 900 please answer and explain

*April 19, 2014*

**math**

The base of triangle ABC is one half the altitude.The altitude of triangle DEF is one half its base. If both triangles are equal in area, what is the ratio of the altitude of triangle ABC to the altitude of triangle DEF ? a. 1:4 b. 1:2 c. 1:1 d. 2:1 e. 4:1 please answer and ...

*April 19, 2014*

**math**

h^2 + 75 = 100 h^2 = 25 h = 5 5 x 5 square root 3 /2 =25 square root 3 /2 = 12.5 square root 3 answer e right?

*April 19, 2014*

**math**

If the hypotenuse of a right triangle is 10 and one leg is 5 square root 3, then the area of the triangle is a. 5 b. 25 square root 3 c. 25 d. 50 square root 3 e. 12.5 square root 3 please answer and explain

*April 19, 2014*

**math**

thank you

*April 19, 2014*

**math**

why use 16v^2 4v x 4v ?

*April 19, 2014*

**math**

The length of a rectangle is represented by the numerical value of 5V^3. If the recrtangle is equal in area to a square with a side represented by 4V, what is the width of the rectangle in terms of V?

*April 19, 2014*

**math**

The length of a rectangle is represented by the numerical value of 5V^3. If the recrtangle is equal in area to a squae with a side represented by 4V, what is the width of the rectangle in terms of V? a. 1/80V^5 b. 4/5V c. 16/5V d. 16/5V^2 e. 5V/16 please answer and explain

*April 19, 2014*

**math**

ABCDEF is a regular hexagon. If the perimeter = 12 find the area of ABCDEF.

*April 18, 2014*

**math**

A cow is attached to a rope in a pasture bordered by two fences ( each 60 feet long) which meet at an angle of 24 degree. If the rope attached to the cow is 15 feet long, over how many square feet can the cow graze? a. 2 pi b. 15 pi c. 30 pi d. 45 pi e. 240 pi please answer ...

*April 18, 2014*

**math**

Katrina's ski boots cost 8% more than her skis.Her ski boots cost $162. Whick equation can be used to find the cost, c, of Katrina's skis? a. c + 0.08c =162 b. c + 0.8c = 162 c. c - 0.08c = 162 d. c - 0.8c = 162 please answer and explain

*April 18, 2014*

**math**

Regis has a bag with 8 tiles numbered 1 through 8. He randomly draws one tile from the bag without looking.Which of the following decribes a likely outcome? a. He selects a tile with the number 0. b. He selects a tile with the number 4. c. He selects a tile with a number ...

*April 18, 2014*

**math**

I don't understand . why answer b 2/10 = 1/5

*April 17, 2014*

**math**

A bag has 4 red marbles, 4 blue marbles, and 2 green marbles. Jessie draws a marble from the bag at random, notes the color, and then replaces the marble.She then draws a second marble at random.What is the probability that both the marbles are green? a. 1/45 b. 1/25 c. 1/5 d...

*April 17, 2014*

**math**

thank you, Steve

*April 17, 2014*

**math**

Jonny wants to place a poster that is 25 1/2 inches wide in the center of a wall that is 60 inches wide. How far from each corner should he place the poster for it to be centered? a. 16 3/4 in b. 17 1/4 in c. 18 1/3 in d. 34 1/2 in my answer is b, anybody can tell me right on ...

*April 17, 2014*

**math**

I count 1 has 14, 2 has 11, 14/0.25=56% so my answer is c, is it correct?

*April 17, 2014*

**math**

I don't understand what the question mean

*April 17, 2014*

**math**

Tia generated a list of random numbers to simulate an experiment based on the waiting times at a supermarker checkout line.The number 1 represents waiting in line less than 5 minutes and the number 2 represents waiting in line 5 minutes or more. 1,1,1,1,2,1,1,1,2,1,2,2,1,2,2,1...

*April 17, 2014*

**math**

thank you ,Ms.Sue

*April 17, 2014*

**math**

my answer is b. but I don't know what is the elevation mean

*April 17, 2014*

**math**

A submarine at an elevation of -35 feet rises 35 feet. What is the elevation of the submarine after it rises? a. -70 feet b. 0 feet c. 35 feet d. 70 feet please answer and explain

*April 17, 2014*

**math**

A map measuring 8" x 10" and drawn to the scale 1" = 50 miles is pasted on a sheet of paper of the same size. Find theleast number of sheets of this paper that would have to be taped together to hold this same map if it were drawn to the scale 2" = 25 miles...

*April 13, 2014*

**math**

my answer is c

*April 13, 2014*

**math**

I know the average cost of gasoline is 35 cents per gallon is ridiculous, but just a question

*April 13, 2014*

**math**

A saleman operates a car which averged 15 miles to a gallon of gasoline.By installing a new carburetor the car improves its mileage by 1/5. How much will he save on gasoline during a year in which he covers 5400 miles, if the average cost of gasoline is 35 cents per gallon? a...

*April 13, 2014*

**math**

answer d.20 thank you

*April 13, 2014*

**math**

A fish tank 1 feet x 1 1/2 feet x 1/2 feet is carefully used to fill a large tank which has a capacity of 15 cubic feet. How many times will the contents of the smaller tank be rquired to be emptied into the larger tank to completely fill the tank? a. 8 b. 10 c. 11 d. 20 e. ...

*April 13, 2014*

**math**

If there are 10 to 15 apples in a basket and there are 2 to 3 baskets in a bushel, what is the maximum number of bushels that can be filled by 900 apples? a. 20 b. 25 c. 30 d. 40 e. 45 please answer and explain

*April 13, 2014*

**math**

There are 216 couples competing in a dance contest.After each half hour one-third of the contest-ants are eliminated. How many couples will remain eligible for the prize after the first hour? a. 24 b. 46 c. 48 d. 96 e. 98 please answer and explain

*April 13, 2014*

**math**

The number of washers 3/32 inch thick that can be cut from a piece of stock 25 1/2 inches long, allowing 1/16 inch for waste for each cut is a. 160 b. 163 c. 260 d. 272 e. 408 please answer and explain

*April 13, 2014*

**math**

Mr.Smith's tax on his house for 1965 was $283.79.If the tax rate for that year was $3.835 per $100 of assessed valuation, for what amount was Mr.Smith's house assessed? a. $10.88 b. $74 c. $740 d. $1088.33 e. $7400 please answer and explain

*April 11, 2014*

**math**

An efficiency expert has calculated that about 9.5% of the articles produced in a manufacturing plant are defective. This is equivalent to expressing the defective articles as a. 9 out of 15 b. 9 out of 50 c. 10 out of 95 d. 19 out of 100 e. 19 out of 200 please answer and ...

*April 9, 2014*

**math**

thank you

*April 9, 2014*

**math**

my answer is e 25/2=12.5 12.5+25=37.5

*April 9, 2014*

**math**

If a workman receives time and a half for overtime, 25 hours of overtime would be the equivalent of how many regular working hours? a. 6 b. 12 c. 18 d. 30 e. 37.5 please answer and explain

*April 9, 2014*

**math**

A father can do a job as fast as two sons working together. If one sone does the job alone in three hours and the other does it alone in six hours, how many hours does it take the father to do the job alone? a. 1 b. 2 c. 3 d. 4 e. 4 1/2 please answer and explain

*April 9, 2014*

**math**

HHow many pupils are there in a class if two pupils remain after four rows of seats are filled, and nine pupils remain after three rows of seats are filled? a. 21 b. 22 c. 28 d. 30 e. 32 please answer and explain

*April 9, 2014*

**math**

Write an equation for the realartionship. Tell what the variables represent. It takes Li 1 hour to drive 65 miles, 2 hours to dirve 130 miles, and 3 hours to drive 195 miles.

*April 8, 2014*