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Post New Question
All Questions
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234765 Questions
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371
2
help plz
If x and y are positive integers for which 3x + 2y + xy = 115 + 7x, then what is x + y?
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Guest
Oct 19, 2021
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408
4
help please
When my car has wheels with a diameter of 24 inches, its speedometer reports the correct speed of my car. I recently replaced my 24-inch wheels with 28-inch diameter wheels. I didn’t change my speedometer, however. When the speedometer tells me that the
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Guest
Oct 19, 2021
0
336
3
mathematics
Micah spent half of his money and an additional $324 on a television.
Then he spent 1/6 of his remaining money and an additional $55 on a DVD
player. Then he spent 0.4 of his remaining money and an additional $18
on a music player.
read more ..
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Guest
Oct 19, 2021
0
232
1
Quadratic
Find 1/(a - 1) + 1/(b - 1), where a and b are the roots of the quadratic equation 2x^2-7x+2 = x^2 - 9x + 1.
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Guest
Oct 19, 2021
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233
0
Functions and Tables
Functions and TablesEvery hour of training raises the salary $ _____.
Guest
Oct 19, 2021
0
275
1
WORD PROBLEM
Brenden wants to make a shed that is a copy of his office building. The roof of the office building is
18.5 m wide and 5.4 m higher at the center than the edges. If the shed is 3 m wide, what will be the
rise of the roof?
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Guest
Oct 19, 2021
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386
2
Hi anyone can help me
Richard spend of his money on 4 bags and 4 pencil cases. The cost of a bag
is twice that of a pencil case. With of his remanining money, he bought more
pencil cases. How many pencil cases did he buy in all?
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Guest
Oct 19, 2021
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349
2
Help
Mary baked some pies. She packed 1/3 of the pies in 8 small boxes and 2/5 of
the pies in 7 big boxes. She donated the remaining pies to a charity. Each big
box had 26 more pies than each small box. How many pies were packed in
boxes
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Guest
Oct 19, 2021
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344
1
Geometry
Two lines p and q intersect at X at an angle of 30 degrees. Let A be a point inside the 30 degrees angle formed by p and q Let B the reflection of A through line p and Let c be the Reflection of A through line q. Find angle BAC.
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Guest
Oct 19, 2021
0
458
1
+677
paper-squares
hello,
Anna, Bea, Clara and Dana have many paper squares of the same size in the colours red, green, blue and white.
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Straight
Oct 19, 2021
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292
1
In parallelogram JKLM, segment LM = 48 centimeters, segment JN = 14 centimeters, and segment JM = 16
In parallelogram JKLM, segment LM = 48 centimeters, segment JN = 14 centimeters, and segment JM = 16 centimeters.
What is the area of parallelogram JKLM?
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Guest
Oct 19, 2021
0
341
1
geometry
In triangle ABC, angles A, B, C form an arithmetic sequence. If angle A = 21 degrees, what is angle C, in degrees?
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Guest
Oct 19, 2021
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318
1
Geometry
Lines XQ and XR are tangent to a circle, as shown below.
read more ..
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Guest
Oct 19, 2021
0
254
1
Arithmetic sequences
Let a1, a2, a3, ... be an arithmetic sequence. If a2/a4 = 3, what is a5/a3?
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Guest
Oct 19, 2021
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398
2
Math
What is the smallest positive multiple of $13$ that is greater than $500?$
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Guest
Oct 19, 2021
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256
1
help Number Theory
x,y, and z are positive integers such that gcd(x, y, z) = 14 and lcm(x, y, z) = 630 and y = 3x. What is the smallest possible value of x + y + z?
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Guest
Oct 19, 2021
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350
1
estimate
what does 0.2 estimate to?
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Guest
Oct 19, 2021
0
312
1
Help
A communication tower casts a shadow of 55m when the sun is at an angle of elevation of 72 degrees. What is the height of the tower to the nearest degree?
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Guest
Oct 19, 2021
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241
0
Math
A communication tower casts a shadow of 55m when the sun is at an angle of elevation of 72 degrees. What is the height of the tower to the nearest degree?
Guest
Oct 19, 2021
0
289
2
Number Theory
Determine the largest possible integer n such that 942! + 120! is divisible by 60^n.
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Guest
Oct 19, 2021
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432
2
+4
Geometry: Area and Perimeter
A point in a square is connected to the midpoints of its sides, dividing the square into four regions. The areas of three of the regions are labelled. Find the area of the fourth region.
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mattjunior
Oct 19, 2021
0
266
1
Number Theory
Suppose a and b are positive integers such that gcd[a,b] is divisible by exactly 7 distinct primes and lcm{a,b} is divisible by exactly 20 distinct primes. If a has fewer distinct prime factors than b, then a has at most how many distinct prime factors?
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Guest
Oct 19, 2021
0
369
1
Singapore math
There was a total of 20 800 sacks of rice in Factory A and factory B. After 3/4 of
the sacks of rice in Factory A and 3/5 of the sacks of rice in Factory B were sold,
there were 1040 more sacks of rice in Factory b than Factory A. How many
read more ..
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Guest
Oct 19, 2021
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226
0
Sequences
A sequence with $a_1 = 1$ is defined by the recurrence relation $a_{n + 1} = 2^{n + 1} a_n$ for all natural numbers n. If $a_{3} = 2^p$, then what is p?
Guest
Oct 19, 2021
0
270
1
help
Yesterday, (5)/(6) of the 180 students in a contest gave their speeches. How many students gave their speeches?Write your answer in simplest form.
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Guest
Oct 19, 2021
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