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All Questions
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230603 Questions
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53
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solve
Solve for the variable x in terms of y and z, assuming y \neq \frac{1}{2}:
xy + x = \frac{3x + 2y + z + y + 2z}{3}
Guest
Jun 5, 2023
0
54
1
system
Find the ordered triple (p,q,r) that satisfies the following system:
p - 2q = 3
q - 2r = -2 + q
p + r = 9 + p
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Guest
Jun 5, 2023
Jun 4, 2023
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49
0
Help
A single chain supports a pulley that weighs 40N, so two identical 80N weights are connected with a rope that passes over the pulley. What is the tension of the chain that supports the whole assembly?
Guest
Jun 4, 2023
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59
1
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
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Guest
Jun 4, 2023
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46
4
proportion
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 to the length of the wire. We
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Guest
Jun 4, 2023
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51
0
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 4, 2023
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54
2
rate problem
I drove to the beach at a rate of 40 miles per hour. If I had driven at a rate of 42 miles per hour instead, then I would have arrived 45 minutes later. How many miles did I drive?
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Guest
Jun 4, 2023
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48
1
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
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Guest
Jun 4, 2023
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56
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help hard geo
This is some very hard geometry
Triangle XYZ is equilateral. Points Y and Z lie on a circle centered at O, such that X is the circumcenter of triangle OYZ, and X lies inside triangle OYZ. If the
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Guest
Jun 4, 2023
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39
1
+1124
Word sum
Hi friends,
I trust you are all well...please help with a word sum...it's a bit above me...
Ben and Angie go shopping. The both have the same amount of money,
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juriemagic
Jun 4, 2023
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54
1
help me
Find the number of ways of arranging the numbers 1,2 ,3, 4, 5, 6, 7, 8, 9 in a row so that the product of any two adjacent numbers is even.
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Guest
Jun 4, 2023
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51
1
+1347
digits
For her 16th birthday, Kate receives a book. On each page whose digits sum to 16, there is one word of a secret birthday message written in the margin. If the book is 2800 pages, how many words are in the secret birthday mesasage?
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sandwich
Jun 4, 2023
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59
0
+1347
need help
In a regular icosagon (20-sided polygon), all the diagonals are drawn. If a diagonal is selected at random, what is the probability of selecting a diagonal that is either the second-shortest possible length or the second-longest possible length? Express
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sandwich
Jun 4, 2023
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36
1
+1347
help plz
A haiku is a poem with three lines: the first line contains 5 syllables, the second line 7 syllables, and the last line 5 syllables. If each word in each list shown is used at most once, how many different haiku can be made with these
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sandwich
Jun 4, 2023
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57
1
solve
A candy bar and a piece of bubble gum together cost 1.50. The candy bar costs a dollar more than the bubble gum. How much does the piece of bubble gum cost, in cents?
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Guest
Jun 4, 2023
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51
0
help plz
Let a and b be real numbers such that a^3 + 3ab^2 = 679 and a^3 - 3ab^2 = 615. Find a + b.
Guest
Jun 4, 2023
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38
4
+70
mathh
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 3 times as much money as Bob. If neither
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sheeshers
Jun 4, 2023
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