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All Questions
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232979 Questions
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542
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help
A three-digit number N (in decimal) contains the digit 0. When the zero is removed, the resulting number is exactly N/9. What is the value of N?
Note: The number may contain more than one zero. The number may not begin with a zero.
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Guest
Jul 6, 2020
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343
1
help
Multiply the product
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Guest
Jul 6, 2020
0
546
2
A math problem
In 2004, 50 out of every 100 drivers at the National Trucking Company passed their driver's license exam on their first try. In 2005, 62% of the drivers passed on their first attempt. What was the percent increase in the passing rate?
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Guest
Jul 6, 2020
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545
3
help
Multiply the product 103*97 in your head.
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Guest
Jul 6, 2020
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546
2
help
Find the number of distinct positive divisors of 21600 (inclusive of 1 and itself).
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Guest
Jul 6, 2020
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519
1
Trig help: Solve for X
solve for X (A, B, & C are constants): arctan(C/X)=arcsin((A-X)/B)
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Guest
Jul 6, 2020
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639
1
someone help me please
A soup company needs to make labels for their soup cans. Their cans have a circumference of 25 cm and a height of 10cm. a) To the nearest tenth, what is the radius of the soup can?
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Guest
Jul 6, 2020
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390
1
help
2 vases and 8 bunches of flowers cost $15.
20 vases and 5 bunches of flowers cost $25.
How much does each item cost?
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Guest
Jul 6, 2020
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398
1
Help please
Let and be integers. Show that is divisible by if and only if is divisible by .
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Guest
Jul 6, 2020
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368
1
help
Find the least positive multiple of 7 which leaves a remainder of 4 when divided by any of 6, 9, 15 and 18.
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Guest
Jul 6, 2020
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876
2
+174
Guys I don't understand how to do this problem
Find the sum of all positive rational numbers that are less than 5, and that have a denominator of 30 when written in lowest terms
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Forumofweb2.0cal
Jul 6, 2020
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405
1
Level Algebra: Hard
Let $f(x)$ be a quadratic polynomial such that $f(-4) = -22,$ $f(-1)=2$, and $f(2)=-1.$ Let $g(x) = f(x)^{16}.$ Find the sum of the coefficients of the terms in $g(x)$ that have even degree. (For example, the sum of the coefficients of the terms in $-7x^3
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Guest
Jul 6, 2020
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353
1
help
Given that a and b are digits such that is a multiple of 3, 5 and 7, what are a and b?
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Guest
Jul 6, 2020
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405
1
I'm Stuck on how to do this
George decides to write the numbers 1 to 1,000 (inclusive) on a piece of paper. How many times does he write the digit 0?
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Guest
Jul 6, 2020
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414
1
counting question
I'm stuck on this problem...
How many integers between 1 and 1000 (inclusive) are neither multiples of 2 nor multiples of 5?
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Guest
Jul 6, 2020
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470
1
-3.5x + 28 = 231
i cant figure out what x is
-3.5x + 28 = 231
off-topic
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Guest
Jul 6, 2020
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541
1
writing...
(1889568:1296)º can you please help me?
off-topic
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Guest
Jul 6, 2020
0
570
1
help
For the numbers from 1 to 1000, how many multiples of 9 are also multiples of 6?
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Guest
Jul 6, 2020
0
412
1
Probability Help
A bag contains five white balls and four black balls. Your goal is to draw two black balls.
You draw two balls at random. Once you have drawn two balls, you put back any white balls, and redraw so that you again have two drawn balls. What is the probability
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Guest
Jul 6, 2020
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380
1
Help Please :)
Three cards are drawn at random from a standard deck of cards, without replacement. Find the probability that the suits of the cards are spades, hearts, spades, in that order.
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Guest
Jul 6, 2020
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376
1
set problem
The number of subsets in set A is 192 more than the number of subsets in set B. How many elements are there in set A?
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Guest
Jul 6, 2020
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