Wednesday

April 16, 2014

April 16, 2014

Number of results: 67

**motion problem**

Ric can row upstream against a current at 6kph in 10 hrs while it will take him only 4 hrs going back. how far does he go upstream? (w/ solution pls... tnx)
*Tuesday, November 12, 2013 at 8:35pm by MNHS MNHS*

**motion problem**

A man rowed 30km downstream. it took him 2hrs more time in going back than in going downstream. if the current is 2kph, what is his speed in still water? (with solution pls... tnx)
*Tuesday, November 12, 2013 at 8:37pm by MNHS MNHS*

**U.S.History**

I don't think so. Check this site. http://www.mnhs.org/library/tips/history_topics/62bonanza.html
*Thursday, February 19, 2009 at 7:01pm by Ms. Sue*

**ALG 2!!!**

m=[-5-(-5)]/(3-9) m=0 the equation is y=-5
*Thursday, November 22, 2012 at 4:33pm by MNHS*

**Math**

1 pizza
*Wednesday, January 9, 2013 at 6:28am by HELP HELP HELP MNHS*

**Geometry**

line I think...
*Wednesday, January 9, 2013 at 3:24pm by HELP HELP HELP MNHS*

**Algebra**

If (x+3)(x-2)(x+1)=(x+2)Q(x)+(x+3)(x-2) (with solution pls... thanks)
*Saturday, January 26, 2013 at 9:49pm by HELP HELP HELP MNHS*

**Algebra**

y^2(y^2-10y+21) y^2(y-7)(y-3)
*Monday, February 4, 2013 at 1:20am by HELP HELP HELP MNHS*

**ALG 2!!!**

slope is undefined the equation is x=2
*Thursday, November 22, 2012 at 4:32pm by MNHS*

**math 1**

thanks Reiny, hope i am as intelligent as you.... :)
*Wednesday, January 9, 2013 at 7:39am by HELP HELP HELP MNHS*

**math 1**

how many integral powers of 2 are there between 2 and 2000?
*Thursday, January 17, 2013 at 4:57am by HELP HELP HELP MNHS*

**Math**

x^2+11x+52+(527x+19)/x^2-9
*Sunday, February 3, 2013 at 11:58pm by HELP HELP HELP MNHS*

**algebra**

Sorry i 4got 2 multiply y to seven... the correct anser is 7/5...
*Sunday, February 3, 2013 at 3:45pm by HELP HELP HELP MNHS*

**Math**

since 12/16 = 18/24 = 3/4 so the answer is A. 18x24
*Wednesday, January 9, 2013 at 4:32pm by HELP HELP HELP MNHS*

**math**

(17+33+45+66+135)/5=296/5=59.2
*Wednesday, February 6, 2013 at 4:10am by HELP HELP HELP MNHS*

**ALG 2!!!**

Since the slope is 0 its graph will intersect at y-axis which is a horizontal line... so the equation is "y=4"
*Thursday, November 22, 2012 at 4:34pm by MNHS*

**distance problem**

sir what do you mean by vt and tt, vc and tc... tnx....
*Monday, December 17, 2012 at 7:20am by HELP HELP MNHS*

**distance problem**

sir what do you mean by vt and tt, vc and tc... tnx....
*Monday, December 17, 2012 at 7:20am by HELP HELP MNHS*

**math sequenc**

the nth term of the geometric progression is 3(2^n-1). how many terms are less than 200?
*Tuesday, January 8, 2013 at 10:23pm by HELP HELP MNHS*

**math**

Please give me the technique (short method) in this question... How many 4-digit numbers are multiples of 9?
*Wednesday, January 23, 2013 at 7:19am by HELP HELP HELP MNHS*

**quadratic equation**

if one root of 3x^2-5x+c=0 is 2, what is the other? (with solution pls... tnx...)
*Thursday, January 17, 2013 at 7:55am by HELP HELP HELP MNHS*

**math**

If X is a point on the segment joining A(2,-1) and B(9,6), find the coordinates of X if AX:XB = 2:5. with solution pls... tnx...
*Wednesday, January 30, 2013 at 4:03am by HELP HELP HELP MNHS*

**math**

(In this question the answer is -4, please explain how did they get it) If A and B have coordinates -15 and 11, what is the coordinate of X if X is 4 units farther from B as from A?
*Wednesday, January 30, 2013 at 4:23am by HELP HELP HELP MNHS*

**Math**

What is the least number of square pieces into which a cardboard, 13ft long and 8ft wide can be cut? solution pls...
*Tuesday, February 5, 2013 at 4:11am by HELP HELP HELP MNHS*

**coversion**

150 lbs x 1kg/2.2 lbs = 68.18 kg
*Wednesday, November 21, 2012 at 9:54pm by HELP HELP MNHS*

**math**

3/4 yards = 2.25 feet 2.25/9= .25ft each
*Wednesday, January 9, 2013 at 8:53pm by HELP HELP HELP MNHS*

**Math**

convert 1.5% to decimal, that is 0.015 0.015h = 12 divide both sides by 0.015 h = 800
*Wednesday, January 9, 2013 at 9:03pm by HELP HELP HELP MNHS*

**math 1**

Pls solve this using one variable: The difference bet 2 numbers is 3. The sum of thrice the smaller and the larger is 35. Find the original number.
*Wednesday, November 14, 2012 at 12:54am by MNHS*

**Math**

1in : 25mi = x inches : 385mi 25x = 385 (divide both sides by 25) x = 15.40 inches
*Wednesday, November 21, 2012 at 5:52pm by MNHS*

**math**

Two equal circles of radius 8cm intersect at X and Y. If the line joining the centers is 12cm long, find the length of XY. with solution pls, tnx...
*Wednesday, January 30, 2013 at 4:06am by HELP HELP HELP MNHS*

**real number**

How many positive factors does 62x(63^3+63^2+63+1)+1 have? (with solution pls... thanks...)
*Saturday, January 26, 2013 at 9:35pm by HELP HELP HELP MNHS*

**Math Sequence**

the nth term of a series is 9n-7. what is the result of subtracting the kth term from the (k+1)th term? (with solution pls, thnx)
*Tuesday, January 8, 2013 at 10:16pm by HELP HELP MNHS*

**math**

On a number line, the coordinate of A is -18 and that of B is 18. C is a point on AB such that AC:CB = 4:5. What is the coordinate of C? with solution pls... tnx...
*Wednesday, January 30, 2013 at 3:58am by HELP HELP HELP MNHS*

**VARIATION**

A rectangular brass slave has a square base of side x cm, and height h cm, its weight, w kg, is given by the formula w=(3x^2 h)/10. How is w changed if x is trebled and h is halved? (with solution pls... tnx...)
*Wednesday, January 9, 2013 at 8:09am by HELP HELP HELP MNHS*

**math**

A horse is tied to a post by a rope, 8m long at one corner of a rectangular field. What area of the field can the horse graze? solution pls... tnx...
*Wednesday, January 30, 2013 at 4:10am by HELP HELP HELP MNHS*

**Algebra (variation)**

A rectangular brass slave has a square base of side x cm, and height h cm, its weight, w kg, is given by the formula w=(3x^2 h)/10. How is w changed if x is trebled and h is halved? (with solution pls... tnx...)
*Wednesday, January 9, 2013 at 5:01pm by HELP HELP HELP MNHS*

**sociol studies**

The spells interred with Egyptian mummies came from the Book of the Dead. For more information, check this site. http://www.crystalinks.com/egyptafterlife.html What is the collection of spells that was buried with mummy? Any particular mummy? Do you mean the Egyptian ones? ...
*Saturday, February 24, 2007 at 1:48pm by Ms. Sue*

**mnhs**

an open box is to be made from a rectangular piece of tin 12 inches long and 10 inches wide by cutting pieces of x-inches square from each corner and bending up the sides.find the domain of the function ?
*Sunday, July 1, 2012 at 7:23am by melchor*

**INTEGERS**

From his house, a man biked 3km east, 4km north, 1km east then 1km south. At that point, how far is he from his house?
*Wednesday, January 9, 2013 at 12:00am by HELP HELP HELP MNHS*

**investment**

Mr. Centeno invested P50,000, part of which at 5%per year and the rest at 6% per year. His annual income from the 2 investments was P2,000. How much did he investat each rate?
*Wednesday, November 28, 2012 at 12:45am by HELP HELP MNHS*

**math 1**

The average of 10 numbers is 12. If one number is removed, the average is 11. What number is removed?
*Wednesday, November 14, 2012 at 2:10am by MNHS*

**number problem**

The units digit of a 2 digit number exceeds thrice the tens digit by 1. The sum of the digits is 9. Find the number.
*Wednesday, November 14, 2012 at 5:43am by MNHS*

**math 1**

The total outing cost for a group of people amounted to Php 8000. When an additional 4 persons decided to join the outing, the cost per person decreased by 100. How many people actually joined the trip?
*Wednesday, January 9, 2013 at 7:39am by HELP HELP HELP MNHS*

**math**

In a class of 40 students, 27 like math and 25 like filipino. At most how many students do not like at least one of these subject? (With solution pls...thanks....)
*Wednesday, January 23, 2013 at 7:16am by HELP HELP HELP MNHS*

**Math**

In a candy shop, the shopkeeper allows the exchange of 3 sweet rappers for 1 new sweet. John has 81 sweets at first. What is the largest possible number of sweets that john could have eaten? (with solution pls... tnx...)
*Sunday, February 3, 2013 at 5:56am by HELP HELP HELP MNHS*

**Math**

In a candy shop, the shopkeeper allows the exchange of 3 sweet rappers for 1 new sweet. John has 81 sweets at first. What is the largest possible number of sweets that john could have eaten? (with solution pls... tnx...)
*Sunday, February 3, 2013 at 4:25pm by HELP HELP HELP MNHS*

**Math**

Cost of jacket at store B is $48 x 1.055= $50.64 $50.64 - $48 = $2.64 price difference
*Wednesday, January 9, 2013 at 9:07pm by HELP HELP HELP MNHS*

**distance problem**

A car travels 20 km/h faster than a truck. The car covers 360 km in 3 hours less time than the truck.Find the speed of the truck. (kindly write the solution, thanks alot)
*Monday, December 17, 2012 at 7:20am by HELP HELP MNHS*

**AREA**

A square lobby is to be tiled at Php160 per square meter. if the lobby were 2m narrower and 2m longer, the cost of tiling would be Php35,360. Find the dimension of the lobby. (pls write the solutions.... thanks)
*Sunday, January 6, 2013 at 11:46pm by HELP HELP HELP MNHS*

**INTEGERS**

Starting at home a salesman drove 20km east, then 9km north, then 4km east. finally, he drove x km south and at that point he was exactly 25 km away from his home. find x.
*Tuesday, January 8, 2013 at 11:59pm by HELP HELP HELP MNHS*

**ALGEBRA 1**

In a certain math course, a student needs between 720 and 810 points in order to get a B. The final exam is worth 200 points. If Cathy has 582 points just before the finals, what range of scores on the final exam will give her a B for the course?
*Sunday, January 6, 2013 at 11:50pm by HELP HELP HELP MNHS*

**mixture**

Sugar solution is composed of 40 grams of sugar and 200 grams of water. How many grams of sugar must be added to make a 60% sugar solution? (Kindly write the equation..... tnx)
*Thursday, November 22, 2012 at 1:16am by HELP HELP MNHS*

**MAth**

All faces of a 4-inch cube have been painted. if the cube is cut into 1-inch smaller cubes, how many of them have no paint on all their faces? with solution pls... tnx...
*Tuesday, February 5, 2013 at 4:09am by HELP HELP HELP MNHS*

**mnhs**

Find out what is the minimum and maximum size of the cut out in consideration of the size (12"x10") of the tin piece. The domain of the function consists of all the possible values of x. If it is not clear, draw a rectangle to represent the tin sheet, and draw the four squares...
*Sunday, July 1, 2012 at 7:23am by MathMate*

**algebra**

by distributive property: 5y^2+35=7y+49 (addition prop...) 5y^2-7y=49-35 -2y^2=14 (mult. Prop) y=-2 (answer)
*Sunday, February 3, 2013 at 3:45pm by HELP HELP HELP MNHS*

**math**

V=(8.5x10^7)(3.2x10)=2.72x10^10 (2.72x10^10)(7.5)=2.04x10^11 gallons or 204 000 000 000 gallons
*Monday, February 4, 2013 at 12:58am by HELP HELP HELP MNHS*

**Math**

let x be the rate(speed) TABLE: R * T = D M1 x 3 = 3x M2 x+10 3 = 3(x+10) solution: 3x+3(x+10)=210 (210, bcoz 230-20 or distance after 3hrs) 3x+3x+30=210 6x=180 x=30kph
*Wednesday, January 9, 2013 at 6:26am by HELP HELP HELP MNHS*

**math**

The illumination a surface receives from a light source varies inversely with the square of the distance. A table lamp is 3ft from a certain work area. How far is another work area if it receives only 1/3 as much illumination as the first work area? (W/ solution please, tnx...)
*Friday, January 11, 2013 at 6:46am by HELP HELP HELP MNHS*

**set (math)**

A class of 47 students took examination in algebra and geometry. If 29 passed algebra and 26 passed geometry and 4 failed in both subjects, how many passed both subjects? With solution please, tnx...
*Wednesday, January 23, 2013 at 7:25am by HELP HELP HELP MNHS*

**age problem (math)**

Nila is now x years old. 3 years ago, her brother ricky was twice as old as she. Write ricky's age 10 years from now in terms of x. (with solution pls... thanks...)
*Saturday, January 26, 2013 at 10:05pm by HELP HELP HELP MNHS*

**math**

one bag of rice weighs the same as 2 bags of salt or 3 bags of sugar. How many bags of rice are needed to balance 7 bags of salt and 10 bags of sugar?
*Sunday, February 3, 2013 at 4:48pm by HELP HELP HELP MNHS*

**investment**

A certain amount of money is invested at 6% per year. A second amount is P5000 larger than the first is invested at 8% per year. The interest from the investment at the higher rate exceeds the income from the lower investment by P500. Find the investment at each rate.
*Wednesday, November 28, 2012 at 12:58am by HELP HELP MNHS*

**investment**

A certain amount of money is invested at 6% per year. A second amount is P5000 larger than the first is invested at 8% per year. The interest from the investment at the higher rate exceeds the income from the lower investment by P500. Find the investment at each rate.
*Wednesday, November 28, 2012 at 1:00am by HELP HELP MNHS*

**algebra/ word problem**

let x - rate in still water y - rate of current R * T = D UPS x-y 1.5 6mi DOWNS x+y 1 6mi 1.5(x-y)=6 ----- 1.5x-1.5y = 6 -1.5[(x+y)=6] -- -1.5x-1.5y = -9 ________________ by elimination -3y = -3 method y = 1mph(current) x+1=6 x=5mph (still water)
*Wednesday, January 9, 2013 at 9:18pm by HELP HELP HELP MNHS*

**Maths**

we can get CD by getting the CR using geometric sequence since the common ratio (CR) & common diff (CD)are the same... so, A sub 6=A sub 1 r^(n-1) 96=3r^5 r^5=32 r=2-------> CD is also 2 THEN, the first 5 terms of an arithmetic sequence using CD of 2 are: 3, 5, 7, 9, 11
*Sunday, February 3, 2013 at 4:27pm by HELP HELP HELP MNHS*

**Algebra**

x 1st + even integer x+2 2nd + even integer x^2+(x+2)^2= 164 x^2+x^2+4x+4-164=0 1/2(2x^2+4x-160=0) x^2+2x-80=0 (x+10)(x-8)=0 x=-10 & x=8, disregard -10 since we are looking for positive integers... so, x=8 (1st even) x+2= 10 (2nd even)
*Monday, February 4, 2013 at 1:23am by HELP HELP HELP MNHS*

**Math**

In the Math department of a school, 10 teachers have YM accounts, 13 have GM accounts, and 6 have both accounts. How many teachers in Department have YM or GM accounts?
*Sunday, February 3, 2013 at 6:27am by HELP HELP HELP MNHS*

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