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Preguntas
253
Respuestas
86
256 Questions
115 Answers
0
66
0
+816
help inequality
Jeri finds a pile of money with at least 200. If she puts 60 of the pile in her left pocket, gives away $\frac25$ of the rest of the pile, and then puts the rest in her right pocket, she'll have more money than if she instead gave away 200 of the
lee mas ..
maximum
1 nov 2023
0
58
0
+816
Inequality problem
My street hockey team plays three games each week. My team lost all $12$ games in the first four weeks. Then, my team won two games and lost one game in the fifth week, bringing our record to $2$ wins and $13$ losses. Each week after that, my team
lee mas ..
maximum
1 nov 2023
0
39
1
+816
help algebra
One ordered pair $(a,b)$ satisfies the two equations $ab^4 = 48a^2 b$ and $a^2 b^5 = 6a^3 b$. 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.)
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maximum
1 nov 2023
0
39
1
+816
system
Real numbers $a$ and $b$ satisfy
a + ab^2 = 250ab + ab^3
a - ab^2 = 240ab - 50b^2
Enter all possible values of a, separated by commas.
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maximum
1 nov 2023
0
63
1
+816
help geometry
In traingle ABC, point X is on side BC such that AX=13, BX=10, and CX=6, and the circumcircles of triangles ABX and ACX have the same radius. Find the area of triangle ABC.
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maximum
1 nov 2023
0
42
1
+816
geometry problem
Let R be the circle centered at (0,0) with radius 10. The lines x=6 and y=4 divide R into four regions R1, R2, R3 , and R4. Let R_i denote the area of region R_i If R1>R2>R3>R4, then find R1 + R2 + R3 +
lee mas ..
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maximum
1 nov 2023
0
33
1
+816
counting help
You are given the $4 \times 4$ grid below. Find the number of ways of placing $4$ counters in the squares (at most one counter per square), so that each row contains exactly one counter, and each column contains exactly one counter.
lee mas ..
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maximum
29 oct 2023
0
46
1
+816
help plz
Find the number of positive integers that satisfy both the following conditions:
* Each digit is a $1$ or a $3$ or a $5$
* The sum of the digits is $10$
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maximum
29 oct 2023
0
52
1
+816
need help
A baking club wants to form an executive committee. There are $18$ people in the baking club, including Mark. In how many ways can the baking club form an executive committee with $2$ people?
A baking club wants to form
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maximum
29 oct 2023
0
29
1
+816
help counting
In how many ways can $4$ balls be placed in $8$ boxes if the balls and boxes are both distinguishable?
In how many ways can $4$ balls be placed in $8$ boxes if neither the balls nor the boxes are distinguishable?
In
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maximum
29 oct 2023
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