All Questions ⁺⁰231244 Questions

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probability

Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 20?

Guest Jun 12, 2023

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Six children are each offered a single scoop of any of $3$ flavors of ice cream from the Combinatorial Creamery. In how many ways can each c

Six children are each offered a single scoop of any of flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that some flavor of ice cream is selected by exactly read more ..

Guest Jun 12, 2023

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55

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system

Need help with system
Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations
a + 2b + 3c + 4d + 5e = 41
2a + 3b + 4c + 5d + e = 15 read more ..

Guest Jun 12, 2023

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57

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rates

I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 50 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive?

Guest Jun 12, 2023

Jun 11, 2023

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53

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math

I am really stuck on this
In how many ways can three pairs of siblings from different families be seated in two rows of three chairs, if siblings may sit next to each other in the same row, but no child may sit directly in read more ..

Guest Jun 11, 2023

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56

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system

plz help with systems
For certain values of k and m, the system
3a + 2b = 2
6a + 2b = k + 3a + mb read more ..

Guest Jun 11, 2023

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53

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python question

On the planet Mongo, each year has 15 months and each month has 26 days.
Write a function $$\verb#compute_mongo_age(birthYear, birthMonth, birthDay, currentYear, currentMonth, currentDay)#$$
that residents of Mongo can use to compute their read more ..

Guest Jun 11, 2023

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bisectors

Help Im bad at geometry
In triangle AB, let the angle bisectors be BY and CZ. Given AB = 16, AY = 16, and CY = 16, find BC and BZ.

Guest Jun 11, 2023

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need help

Im having trouble with this
One ordered pair (a,b) satisfies the two equations ab^4 = 48 and ab = 72. What is the value of b in this ordered pair? (Note: you may have to use the Tab key to get your cursor into the middle answer box read more ..

Guest Jun 11, 2023

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57

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help me

I need help with this
In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R:
I = V/R
It's also true that resistance is directly proportional read more ..

Guest Jun 11, 2023

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55

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help plz =)

A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes 3 hours and 36 minutes, but when there is a wind blowing from Penthaven to Jackson at 20 miles per hour, the trip takes read more ..

Guest Jun 11, 2023

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59

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proportion

All members of our painting team paint at the same rate. If 20 members can paint a 2000 square foot wall in 40 minutes, then how long would it take the 20 members to paint a 6000 square foot wall, in minutes?

Guest Jun 11, 2023

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PLZ HELP

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the read more ..

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Guest Jun 11, 2023

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55

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proportion

I have to paint one side of a wall. The wall is 12 meters tall and 120 meters long. Each gallon of paint covers 150 square feet. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons read more ..

Guest Jun 11, 2023

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55

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solve

Alice and Bob each have a certain amount of money. If Alice receives n dollars from Bob, then she will have 4 times as much money as Bob. If, on the other hand, she gives n dollars to Bob, then she will have 8 times as much money as Bob. If neither read more ..

Guest Jun 11, 2023

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ratios

In Linguistics 101, the ratio of the number of juniors to the number of seniors is 3:2. When six more juniors join the class, and one senior drops the class, the ratio of the number of juniors to the number of seniors becomes 2:3. How many read more ..

Guest Jun 11, 2023

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56

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system

The system of equations
\[\frac{xy}{x + y} = 1, \quad \frac{xz}{x + z} = 2, \quad \frac{yz}{y + z} = 1\]
has exactly one solution. What is $z$ in this solution?

Guest Jun 11, 2023

-1

55

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stupid problem with wrong answer

Define a set of positive integers to be balanced if the set is non-empty and the number of even integers in the set is equal to the number of odd integers in the set. How many stric(t)/(p)roper subsets of {1,2,3,4,5,6,7,8,9,10} are balanced?

Guest Jun 11, 2023

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49

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solve

Find all values of x such that \sqrt{4x^2} + \sqrt{x^2} = 6 + 3x.

Guest Jun 11, 2023

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56

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help with math

this might seem easy but i am easily confused.
Find the number of ways that Magnus can give out 10 identical stickers to 8 of his friends. (Not everyone has to get a sticker.)

Guest Jun 11, 2023

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53

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plz help

At a cafeteria, Mary orders two pieces of toast and a bagel, which comes out to $3.15. Gary orders a bagel and a muffin, which comes out to $3.50. Larry orders a piece of toast, two bagels, and three muffins, which comes out to $8.15. How many cents does read more ..

Guest Jun 11, 2023

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59

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helppp

Guest Jun 11, 2023

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MATH HELP!

The perimeter of a rectangular field is 330 yards. If the width of the field is 72 yards, what is its length?

Guest Jun 11, 2023

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