All Questions ⁺⁰236343 Questions

0

290

3

geometry

A large square is divided into 4 small congruent rectangles and a small square as shown. The areas of the large and small squares are 25 and , respectively. What is the length of a diagonal of a small rectangle?

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Guest Apr 16, 2022

0

279

2

Number Theory

How many integers between 1 and 1,000,000 are relatively prime to .

Guest Apr 16, 2022

0

260

1

Number Theory

Find all numbers r for which the system of congruences
x = r (mod 6)
x = 3 (mod 20)
x = 13 (mod 45) read more ..

Guest Apr 16, 2022

0

1

410

4

Algebra

For travel from Washington DC to Baltimore by car, a constant speed of 60 mph was maintained. For the return trip, there was a constant speed mph. What was the average speed over the whole two-way trip?

Guest Apr 16, 2022

+1

279

1

Probability

Fiona writes a list containing all the four-digit numbers that can be written using only the digits 1, 2, and 3. What is the probability that a randomlychosen number in Fiona's list has a digit-sum that is at least 6?

For example, read more ..

Guest Apr 16, 2022

0

292

2

Help probability

A cook has 10 red peppers and 5 green peppers. If the cook selects 6 peppers at random, what is the probability that he selects at least green peppers? Express your answer as a common fraction.

Guest Apr 16, 2022

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270

1

Algebra

What is the sum of all real values of x that satisfy the equation (x-3)(x^2-x+4)=x-3+11?

Guest Apr 16, 2022

0

292

2

Positive integers

Given that a and b are positive integers and that a + b = 24 , what is the value of ab if 2ab + 10a = 3b + 257 ?

Guest Apr 16, 2022

0

382

3

Probability

Hi Max: Please take a look at this question: https://web2.0calc.com/questions/pls-halp_27

MaxWong ●●●

Guest Apr 16, 2022

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287

2

Quadratic

GetThere Airlines currently charges 200 dollars per ticket and sells 40,000 tickets a week. For every 12 dollars they increase the ticket price, they sell 500 fewer tickets a week. How many dollars should they charge to maximize their total revenue? read more ..

Guest Apr 16, 2022

0

277

1

help geometry

The medians AD, BE, and CF of triangle ABC intersect at the centroid G. The line through G that is parallel to BC intersects AB and AC at M and N , respectively. If the area of triangle AGM is 144, then find the area of triangle AGN.

Guest Apr 16, 2022

0

285

3

Counting problem

A group of nine people is be split into three teams, so that one team has four people, another team has four people, and the final team has one person. How many ways can this be done?

Guest Apr 16, 2022

0

290

8

3d geometry

If the diameter of a right cylindrical can with circular bases is increased by , by what percent should the height be decreased in order to preserve the volume of the original can?

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Guest Apr 16, 2022

0

292

2

3d geometry

Joe has exactly enough paint to paint the surface of a cube whose main diagonal is 2. It turns out that this is also exactly enough paint to paint the surface of a sphere. Find the radius of the sphere.

Guest Apr 16, 2022

+18

1

1855

32

+130071

HAPPY BIRTHDAY , MELODY !!!

I baked you a cake.....be sure to share !!!!!

read more ..

●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●●

CPhill Apr 16, 2022

0

283

1

Geometry

In triangle JKL, we have JK = JL = 25 and KL = . Find the circumradius

Guest Apr 16, 2022

0

406

2

Probability

Paul and Jesse each choose a number at random from the first six primes. What is the probability that the sum of the numbers they choose is divisible by 3?

Guest Apr 16, 2022

0

277

1

Number Theory

If a, b, and c are positive integers such that gcd(a,b) = 168 and gcd(a,c) = 88, then what is the smallest possible value of gcd(b,c)?

Guest Apr 16, 2022

0

293

1

+113

help

Dennis and Larry are running around the track. Dennis is measuring his progress in thirds of a mile and Larry is measuring his progress in fourths of a mile. Larry has run three-thirds miles so far. If Dennis has made the same progress, how many fourths read more ..

tacoBRO1023 Apr 16, 2022

0

330

3

What is 400+x=200x?

What is 400+x=200x?

MaxWong ●●●

Guest Apr 16, 2022

0

438

4

Math

Bill bought 2 chicken sandwiches and 3 bowls of vegetable soup for $16.50. Sam bought 1 chicken sandwich and 2 bowls of vegetable soup for $9.50. What was the cost of a bowl of a soup?

Guest Apr 16, 2022

0

298

1

trig question

In right triangle ABC, with B = 90 degrees, we have sin A = 2 cos A + tan A. What is tan A?

Guest Apr 16, 2022

0

259

1

help on this

Luke developed a game for phones that he sold for $5. After the first week he discovered he had 1,916 downloads from girls and 6 times as many boys download the game. Of the boys who downloaded it he only had 1/2 who bought the full game. How many boys read more ..

Guest Apr 16, 2022

0

265

1

Help on this

A contractor bought 94 boxes of nails at a price of $1 per box. Each box contained 54 nails. If he distributed the nails to the 9 houses he was building and made sure each house received the same number of nails, how many nails would each house get? read more ..

Guest Apr 16, 2022

0

266

1

Algebra

If g(x) = sqrt((x + 3)/4), for what value of x will g(2x) = 2g(x)? Express your answer in simplest form.

Guest Apr 16, 2022

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