All Questions ⁺⁰230566 Questions

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Help

The triangles RST and XYZ are congruent. Points P and W lie on ST and YZ, respectively. Which of the following statements are true?
A) If P is the midpoint of Line ST and W is the midpoint of line YZ, then triangle RSP is congruent with read more ..

Guest Sep 21, 2021

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189

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help geometry

Given a 13-14-15 triangle, find the distance between its circumcenter and its incenter

Guest Sep 21, 2021

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174

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umm I'm new and in the sixth grade

what is 2 2/5 inches in feet?

Guest Sep 21, 2021

Sep 20, 2021

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help plz

For what value of k are the graphs of y = 3x + 4 and 2y = kx + 9 parallel?

Guest Sep 20, 2021

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175

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Math

What is 1/2 times 9/1

Guest Sep 20, 2021

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201

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Help ok

https://web2.0calc.com/questions/help-needed_98

Guest Sep 20, 2021

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236

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Algebra

Bismuth-214 has a half life of about 20 minutes. Find the amount of Bismuth-214 left from a 30-gram sample after 1 hour

Guest Sep 20, 2021

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230

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Graphing question

On the graph of y = (x + 2)^2 - 10, how many points are there whose coordinates are both negative integers?

Guest Sep 20, 2021

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238

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word problem

Janice bought 30 items each priced at 30 cents, 2 dollars, or 3 dollars. If her total purchase price was $48.00, how many 30-cent items did she purchase?

Guest Sep 20, 2021

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174

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Help probability

Three red and two blue balls are placed in a hat. A ball is chosen at random and not replaced. A second ball is chosen at random. What is the probability that both balls chosen will be blue.

Guest Sep 20, 2021

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250

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Can anybody help me solve this question

Peter and Cindy each had some money at first. Peter started spending $1.20 daily.
After 15 days, Cindy started spending 1 2/3 of what Peter spent daily. When CIndy
spent all of her money, she had spent $11.60 more than Peter.
read more ..

Guest Sep 20, 2021

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208

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Algebra

A 6% alcohol salt solution is added to a 12% salt solution to produce a 3-liter 10% salt solution. How much of each solution was used? Show your solution.

Guest Sep 20, 2021

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323

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I would want to have help on this question

Sandra has some lemon and peppermint sweets in a container. After she adds in 10 lemon sweets, 3/5 of the sweets are peppermint. After she adds in another 30 peppermint sweets, 3/4 of the sweets are peppermint. How many sweets does she have in the container read more ..

Guest Sep 20, 2021

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347

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Algebra

There are two numbers which add up to 17. If one number is 13 more than the other, find the two numbers.

Guest Sep 20, 2021

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173

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Coordinates

find the equation of a line,in slope intercept form, that has a slope of 2 and passes through the point (-3,1)

Guest Sep 20, 2021

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320

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Geometry

Find the area of triangle ACE.

Guest Sep 20, 2021

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177

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Coordinates

A segment with endpoints at A(2, -2) and B(14, 4) is extended through B to point C. If BC = 3*AB, what are the coordinates for point C? Express your answer as an ordered pair.

Guest Sep 20, 2021

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231

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Help needed.

Richard packed some marbles into 12 small packets and 20 large packets.
Each large packet contained 8 more marbles than each small packet. 1/4 of the
total number of marbles was packed into small packets.
(a) How many marbles read more ..

Guest Sep 20, 2021

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310

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Please help

Holly had a total of 150 books and magazines. She bought another 50 books and gave away 1/3 of her magazines. The number of books and magazines became the same. What was the ratio of the number of books to the number of magazines at first? (Give your answer read more ..

Guest Sep 20, 2021

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449

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i need help!

A large community college has professors and lecturers. The total number of faculty members is 136. The school reported that they have 6 professors for every 11 lecturers. How many professors does the community college employ? *

Guest Sep 20, 2021

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317

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thanks in advance!!!

There were 184 more chocolates than sweets at a candy store at first. At the end of the day, the number of chocolates at first to the number of chocolates sold was 8:3 and the number of sweets sold to the number of sweets left became 2:3. The number of read more ..

Guest Sep 20, 2021

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176

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Math help

For some real number a and some positive integer n
The first few terms in the expansion of (1 + ax)^n are 1- 20x + 180x^2 + cx^3 + ...

Find c read more ..

Guest Sep 20, 2021

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218

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Number Theory

Find the remainder of 5^400 when divided by 29

Guest Sep 20, 2021

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188

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help counting

Old MacDonald has 5 chickens, 4 donkeys, and 7 emus. How many ways can he pair up the animals so that every pair consists of animals of different species? (The order of the animals within each pair does not matter, and the order among the pairs does not read more ..

Guest Sep 20, 2021

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318

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Algebra

Flying against the wind, an alrplane travels 4700 kilometers in 5 hours. Flying with the wind, the same plane travels 9520 kilometers in 7 hours. What is the rate of the plane in still air and what is the rate of the wind?

Guest Sep 20, 2021

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