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Questions (27)

What is the least number of square pieces into which a cardboard, 13ft long and 8ft wide can be cut?solution pls...
1. 1 answer
2. 485 views
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
1. 1 answer
2. 815 views
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
1. 1 answer
2. 822 views
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
1. 1 answer
2. 709 views
In the Math department of a school, 10 teachers have YM accounts, 13 have GM accounts, and 6 have both accounts. How many
1. 1 answer
2. 418 views
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
1. 1 answer
2. 460 views
(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
1. 1 answer
2. 338 views
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?so
1. 3 answers
2. 1,344 views
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
1. 1 answer
2. 478 views
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...
1. 1 answer
2. 407 views
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
1. 1 answer
2. 604 views
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
1. 1 answer
2. 804 views
If (x+3)(x-2)(x+1)=(x+2)Q(x)+(x+3)(x-2)(with solution pls... thanks)
1. 1 answer
2. 390 views
How many positive factors does62x(63^3+63^2+63+1)+1 have? (with solution pls... thanks...)
1. 1 answer
2. 606 views
A class of 47 students took examination in algebra and geometry. If 29 passed algebra and 26 passed geometry and 4 failed in
1. 3 answers
2. 1,541 views
Please give me the technique (short method) in this question...How many 4-digit numbers are multiples of 9?
1. 1 answer
2. 477 views
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
1. 1 answer
2. 506 views
if one root of 3x^2-5x+c=0 is 2, what is the other?(with solution pls... tnx...)
1. 1 answer
2. 369 views
how many integral powers of 2 are there between 2 and 2000?
1. 1 answer
2. 412 views
The illumination a surface receives from a light source varies inversely with the square of the distance. A table lamp is 3ft
1. 1 answer
2. 1,238 views
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
1. 1 answer
2. 399 views
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
1. 1 answer
2. 406 views
The total outing cost for a group of people amounted to Php 8000. When an additional 4 persons decided to join the outing, the
1. 2 answers
2. 451 views
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?
1. 0 answers
2. 406 views
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
1. 2 answers
2. 609 views
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
1. 1 answer
2. 571 views
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
1. 1 answer
2. 562 views

Answers (17)

(17+33+45+66+135)/5=296/5=59.2
x^2+11x+52+(527x+19)/x^2-9
V=(8.5x10^7)(3.2x10)=2.72x10^10 (2.72x10^10)(7.5)=2.04x10^11 gallons or 204 000 000 000 gallons
y^2(y^2-10y+21) y^2(y-7)(y-3)
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)
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:
Sorry i 4got 2 multiply y to seven... the correct anser is 7/5...
by distributive property: 5y^2+35=7y+49 (addition prop...) 5y^2-7y=49-35 -2y^2=14 (mult. Prop) y=-2 (answer)
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)
Cost of jacket at store B is $48 x 1.055= $50.64 $50.64 - $48 = $2.64 price difference
convert 1.5% to decimal, that is 0.015 0.015h = 12 divide both sides by 0.015 h = 800
3/4 yards = 2.25 feet 2.25/9= .25ft each
line I think...
since 12/16 = 18/24 = 3/4 so the answer is A. 18x24
thanks Reiny, hope i am as intelligent as you.... :)
1 pizza
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

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