Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Question
All Questions
+0
234777 Questions
0
360
1
+164
Not my homework but it is hard
At first, Ali had some money. He spent 20% of it on some books and 5/8 of the remainder on old. After that, his parents gave him $90. The ratio of the total amount of money he had in the end to the amount of money he had at first was 3:2. How much
read more ..
●
RunningManZZ
Aug 20, 2021
0
364
1
Hello, please help me out, thanks
Abel had 3 times as many books as Thomas. Abel donated 1/4 of his books to charity. What was the ratio of the number of books Thomas had to the number of books Abel had in the end?
(1) 3:4
(2) 4:9
read more ..
●
Guest
Aug 20, 2021
0
256
0
Complex Numbers
Solve for $z$ in the following equation: $2-iz = 1 + 3iz$.
Express your answer in standard form.
Guest
Aug 20, 2021
0
453
2
Hello , please help me . ASAP
John had some money. He spent 25% of it on books and 1/5 of the remaining amount on a bag. He had $240 left. How much money did he have at first?
●
●
Guest
Aug 20, 2021
0
356
1
Pls help! Thanks in advance.
Joe spent 3/5 of his money on a can of drink and a plate of chicken rice. The plate of chicken rice cost $3 more than the can of drink. Joe then spent the rest of his money to buy another 2 similar cans of drink and had $1 left, find the cost of the can
read more ..
●
Guest
Aug 20, 2021
0
188
0
help algebra
Simplify and rationalize the denominator: $$\frac{1}{1+ \frac{1}{\sqrt{2}+1}}.$$
Guest
Aug 20, 2021
0
183
0
help with algebra
Simplify $\frac{\sqrt{2}}{\sqrt{5}} \cdot \frac{\sqrt{3}}{\sqrt{7}} \cdot \frac{\sqrt{4}}{\sqrt{9}}$ and rationalize the denominator of the resulting fraction.
Guest
Aug 20, 2021
0
247
1
Geometry
What is the area of a trapezoid ABCD with basesAB and CD if: m∠C=m∠D=60°, AB = BC = 8 cm
●
Guest
Aug 20, 2021
0
441
4
………..
Three boys, Jason, Keith and Lucas, had equal number of coins. Jason had only twenty-cent coins. Keith and Lucas each had a mix of twenty-cent and one-dollar coins. Keith had 16 one-dollar coins while Lucas had 7 one-dollar coins.
(a)
read more ..
●
●
●
●
Guest
Aug 20, 2021
0
283
1
Help
Tom had as many stickers as Edward at first. After Tom bought another 8 stickers and Edward lost 5 stickers, Tom had as many stickers as Edward. Find the number of stickers Tom had at first.
●
Guest
Aug 20, 2021
0
379
1
repost Algebra
1.Graph the function f(x)=∛(x+2)
Answer:
2. Graph the function f(x)=-|x-3|+2
read more ..
●
Guest
Aug 20, 2021
0
260
1
Geometry
Find BX.
●
Guest
Aug 20, 2021
0
211
0
help math
Miko and Freya saved the same amount of money. After Miko lent $32 to Freya, Freya had 5 times as much money as Miko. How much did Freya have in the end
Guest
Aug 20, 2021
0
259
1
Geometry
A hexagonal prism has a height of 6 units and a regular hexagonal base with a side length of 4 units. What is the length of the longest segment that can fit inside this prism?
●
Guest
Aug 20, 2021
0
220
0
Polynomial
A polynomial with integer coefficients is of the form
2x^4 + a_3 x^3 + a_2 x^2 + a_1 x + 2 = 0
Find the number of different possible rational roots of this polynomial.
Guest
Aug 20, 2021
0
353
1
+140
Complex Algebra Problem
Let be integers. For how many ordered triples is ?
●
sherwyo
Aug 20, 2021
0
211
0
help with number theory
If a, b, and c are non-negative integers less than 7 such that a+2b+3c=0(mod 7), 2a+3b+c=0(mod 7), 3a+b+2c=0 (mod 7) then determine the remainder when abc is divided by 7.
Guest
Aug 20, 2021
0
327
1
+164
Math
Jason unpacked 51 kilograms of bananas and apples. The bananas came in 9-kilogram bags and the apples came in 8-kilogram bags. In all, Jason unpacked 6 bags of fruit. How many bags of bananas and bags of apples did he unpack?
●
RunningManZZ
Aug 20, 2021
0
339
1
+151
Wort
The total rent of the house is € 2560, the ground floor is € 510, the first floor € 750, and the second floor € 620. How much rent is paid for the third floor?
●
Ajdabegano
Aug 20, 2021
0
358
1
+151
Math
Felix and Markus want to drive a 60km long route in a maximum of 3 hours. After 40 minutes you do the first time check. How long do you actually need to cover the 60km?
●
Ajdabegano
Aug 20, 2021
+2
419
1
+318
Help me on this question
Conrad had some blueberry tarts and kiwi tarts. After selling of his blueberry tarts and of his kiwi tarts, he had the same number of blueberry tarts and kiwi tarts left. Find the ratio of the number of blueberry tarts to the number of kiwi tarts
read more ..
●
Tgfromthe4
Aug 20, 2021
+2
401
1
+164
Sorry help again!
Raul and Randy had a total of 177 game cards. Firmino and Raul had a total of 131 game cards. Firmino had as many game cards as Randy. How many more game cards had Raul than Randy?
●
RunningManZZ
Aug 20, 2021
0
403
2
help plz
Pete and Pam are planning to paint a house together. Pete thinks it would take him 2 times as long as it would take Pam to paint the entire house. Working together, they can complete the job in 18 hours. How long will it take each of them, working alone
read more ..
●
●
Guest
Aug 20, 2021
0
335
1
+164
Help
Minah went shopping with 20 pieces of $5 notes and some $10 notes. The ratio of 5 notes to $10 notes was 2 : 7. After spending an equal number of $5 and $10 notes, the ratio of $5 notes to $10 notes became 3 : 13. What was the total amount spent by Minah?
read more ..
●
RunningManZZ
Aug 20, 2021
0
290
1
Ratios
The map ratio of a map is 1: 50000. find the length on the ground represented by 6.4cm on the map
●
Guest
Aug 20, 2021
«
latest
9390
9389
..
7932
7931
7930
7929
7928
..
2
1
»
Post New Question
3 Online Users
Top Users
+118653
Melody
moderator
+37084
ElectricPavlov
+33653
Alan
moderator
+14985
asinus
moderator
+5265
rarinstraw1195
+3146
admin
administrator
+2973
TitaniumRome
+2651
LiIIiam0216
+2489
GingerAle
+1887
tomtom
+1832
NotThatSmart
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.