All Questions ⁺⁰236344 Questions

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253

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Factorials

There are exactly four positive integers such that (n + 1)^2/(n + 27) is an integer. Compute the largest such n.

Guest Apr 18, 2022

+1

314

8

help pls

i have a question if sam has 5 eggs and she cooks one and eats one how many eggs does she have?

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Guest Apr 18, 2022

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276

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Number Theory

There are exactly four positive integers such that (n + 1)^2/(n + 27) is an integer. Compute the largest such n.

Guest Apr 18, 2022

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308

4

help with probability

Given that a and b are real numbers such that -3 ≤ a ≤ 2 and -1 ≤ b ≤ 4, and values for a and b are chosen at random, what is the probability that product a*b is positive?

Guest Apr 18, 2022

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312

4

can you help

i cant post any more questions and i dont have a gmail can you help me i need help

Guest Apr 18, 2022

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330

2

RSM olympiad question, need help pls

Five friends are all of different heights. The average height of the three tallest friends is exactly the height of one of them. The average height of the four tallest friends is exactly the height of one of them. The average height of all five friends read more ..

geno3141 ●●

Guest Apr 18, 2022

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336

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Please do help

Mum gave Clare, Dean and Eden some money in the ratio 3:8:9. Dean used his money to buy a skateboard and a helmet. The cost of the helmet is 5/7 the cost of the skateboard which Dean paid $44 more than the helmet. How much money did mum give to the three read more ..

geno3141 ●●●●

Guest Apr 18, 2022

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317

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help geometry

In the diagram below, AB is parallel to CD and angle AXE is 98 degrees less than 3 times angle CYX . Find angle BXY.

read more ..

Guest Apr 18, 2022

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306

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Algebra

find the minimum possible value of $$\frac{(y-x)^2}{(y-z)(z-x)}+\frac{(z-y)^2}{(z-x)(x-y)}+\frac{(x-z)^2}{(x-y)(y-z)},$$ where x, y, and z are distinct real numbers

the answer is 3 but why?

Guest Apr 18, 2022

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287

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plz help

If 2/3*3/4*4/5*...*n/(n+1)=1/500, what is the sum of the numerator and denominator of the largest fraction on the left side of the equation?

geno3141 ●●

Guest Apr 18, 2022

+2

286

2

hello again

i just want to say thx to all the moderators and everyone that help other people on this page hope eveyone has a good day.

Guest Apr 18, 2022

+1

307

3

Algebra

Three consecutive positive odd integers a,b and c satisfy a^2-b^2= and c^{2}-b^{2}>0. What is the value of c^{2}-b{^2}?

Guest Apr 18, 2022

+1

404

4

A boating company has the following notice at the gate:

A boating company has the following notice at the gate:
"Children under the age of 13 are not allowed to operate a boat."
Part A: Write an inequality to show the age of children who are allowed to operate a boat. (5 points)
Part read more ..

Guest Apr 18, 2022

+1

425

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A theater company has raised $870.75 by selling 25 floor seat tickets. Each ticket costs the same.

A theater company has raised $870.75 by selling 25 floor seat tickets. Each ticket costs the same.
Part A: Write an equation with a variable that can be solved to correctly find the price of each ticket. Explain how you created this equation. read more ..

Guest Apr 18, 2022

+1

281

2

Probability

What is the probability that at least two of the faces match when you roll four fair six-sided dice? Express your answer as a common fraction.

Guest Apr 18, 2022

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301

2

help

If y and x are positive integers such that 5x+3y=101, what is the greatest possible value of xy?

Guest Apr 18, 2022

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295

4

hello

how is everyone doing today?

Guest Apr 18, 2022

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331

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CPHILL HELP PLEASE :))))) <3

y=x^2-x-6
How do i graph this function
please help me!!!!!

Guest Apr 18, 2022

+1

275

2

Counting

Of all the four-digit positive integers containing only digits from the set {2,4,6,8} what fraction of them have at least one 8?

Guest Apr 18, 2022

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