All Questions

Question One:

Starting at the age of 40, an average man loses 5% of his hair every year.
(a) Writea function describing the average lost of hair within years of time.
(b) At what age should an average man expect to have half his hair left?
(c) At what age read more ..

Guest 2 mins ago

+115

Help

https://web2.0calc.com/questions/help_19346

Ajdabegano 4 hours ago

+151

What do you have half of and have half of

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RunningManZZ 5 hours ago

+151

HARDEST question

https://web2.0calc.com/questions/help-me-to-solve-this-problem_1

RunningManZZ 5 hours ago

+151

Spooky Month

1/4 of Skid's salary was $250 more than 1/5 of Pump's salary. After Skid spent 1/2 of his salary and Pump spent 7/10 of his salary. Skid had $640 more than Pump. What was Skid's salary?

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RunningManZZ 5 hours ago

+20

Find X in the Diagram Below

Thank you

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alias 5 hours ago

+20

Which of the Following Statements Could be that Condition?

ty ahead of time :)

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alias 5 hours ago

+10

I need help

Nate spent 1/3 of his money on 6 curry puffs and 13 apple pies.
The cost of 1 apple pie is twice the cost of a curry puff.
He bought more apple pies with 3/4 of the remaining money.
He paid a total of $92.50 for all the apple pies. read more ..

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KidSmeller 5 hours ago

+20

Which two of the triangles below must be congruent?

ty ahead of time <3

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alias 5 hours ago

+20

Find x in the diagram below

ty in advance :)

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alias 5 hours ago

+148

mathematics

Jacob, Kevin, and Miguel have sold a total of 328 books. Miguel sold 55 more books than Jacob. Kevin sold 42 fewer books than Jacob. How many books did Kevin sell?

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Whayousayy 5 hours ago

+148

Math

Antrope, Dornetic, and Glaivieur have sold a total of 237 candy bars. Glaivieur sold 30 more candy bars than Antrope. Dornetic sold 33 fewer candy bars than Antrope. How many candy bars did Dornetic sell?

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Whayousayy 5 hours ago

Can you please solve, explain how you came up with the answer and a bar graph. Thank you.

Carlos spent 1/4 of his money on a toy car. He spent 1/2 of the remainder on a calculator. He had $18 left. How much did he spend altogether?

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Guest 5 hours ago

I am not going to say it again, PLEASE HELP ME!

https://web2.0calc.com/questions/any-help-will-be-appreciated

Guest 5 hours ago

Math

The money box has nine 5 cents pieces and five 10 cents pieces in it. Another box has seven 10 cent pieces and 10 25 cent pieces on it. What is the total sum of money in cents in the two money boxes?

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Guest 6 hours ago

I need help!

At a dinner party, Comal and Derek were each given a similar bottle of juice, comal drank 2/5 of his bottle of juice before dinner. After dinner, Derek drank 1/2 of bottle of juice and Comal drank another 3/10 of his bottle of juice.
a) What read more ..

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Guest 7 hours ago

Please help

Matthew gave 1/4 of his stickers to May and 1/2 of the remainder to Lily. He then bought 24 new stickers. As a result, he had 102 stickers with him. How many stickers did he give away altogether?

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Guest 7 hours ago

Math

At first, F***y and Grace had $306 altogether. After F***y spent 1/5 of her money and Grace spent $72, both of them had the same amount of money left. How much money did F***y have at first?

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Guest 7 hours ago

Number Theory

Modify one digit in the number 31743 can make it a multiple of 281. What is the number after change

Guest 7 hours ago

Divisors

Suppose n is a positive integer such that 6n has exactly 9 positive divisors.
How many prime numbers are divisors of 6n?

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Guest 8 hours ago

Sep 17, 2021

OH PLS HELP!!!

https://web2.0calc.com/questions/any-help-will-be-appreciated

Guest 8 hours ago

Geometry

Find the area of triangle ACE.

Guest 8 hours ago

Counting

There are 20 children in the cast of a class play, and 8 of the children are boys. Of the boys, 5 have a speaking part in the play, and of the girls, 7 do not have a speaking part in the play. If a child from the cast of the play is chosen at read more ..

Guest 9 hours ago

Help Inequality

Find the set of all such that neither 2 + z nor 4 - z is in the interval (-1,1]. Express your answer as an interval or as a union of intervals.

Guest 9 hours ago

Number Theory

How many five-digit numbers of the form 32x5y are divisible by 33?

Guest 10 hours ago

HELPPP

R=42−0.7tR
Quinn returned home one summer's day to find it extremely hot. He turned the air conditioner on, and the room's temperature began decreasing at a constant rate. The equation shown above gives the room's temperature, RRR, in degrees Celsius, read more ..

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Guest 10 hours ago

+20

Find the number of ways of writing the positive integer 9 as the sum of exactly 5 positive numbers.

Find the number of ways of writing the positive integer 9 as the sum of exactly 5 positive integers, where the order of addends does not matter. 5 + 1 + 1 + 1 + 1 and 1 + 5 + 1 + 1 + 1 are considered one way.

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goldenroses 11 hours ago

Need help

Clarence has a certain sum of money. He needs an extra $44 in order to buy
3 jerseys. After receiving $108 from his father, he is able to buy 5 jerseys.
(a) How much is the cost of one jersey?
(b) How much money does read more ..

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Guest Sep 17, 2021, 8:27:42 PM

PLEASE A HELP!

https://web2.0calc.com/questions/please-help-i-don-t-understand_5

Guest Sep 17, 2021, 7:35:54 PM

+3107

happy birthday Rosala

Happy birthday to an OG indeed. idk if she still active or not on here but a long time ago she was and she was real cool to talk to. besides her being good at math, she was better at being a nemesis and is a great friend. i saw melody's recent post read more ..

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TitaniumRome Sep 17, 2021, 6:29:41 PM

Coordinates

What is the slope of a line perpendicular to the line containing the points (4,-7) and (-6,1)? Express your answer as a common fraction.

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Guest Sep 17, 2021, 5:52:39 PM

+148

Please help with this question, thank you.

There were 76 strawberries and rambutans in a basket. John gave away 2/5 of the strawberries and 1/2 of the rambutans. In the end, there were 42 fruits left. How many strawberries were there in the basket at first?

Whayousayy Sep 17, 2021, 5:45:36 PM

+148

Help on ratios

The ratio of the number of cars to the number of vans to the number of
mortorbikes at a car park is 5:2:3. Each car and each van had 4 wheels. Each
motorbike has 2 wheels.
a) If there is a total of 816 read more ..

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Whayousayy Sep 17, 2021, 5:37:47 PM

Help range

What is the range of the function f(x) = 3*2*51^x?

Give your answer as an interval.

Guest Sep 17, 2021, 5:28:11 PM

Algebra

Find all values of c such that 3^(2c+1) = 28*3^c.
If you find more than 1 value of c, then list your values in increasing order, separated by commas.

Guest Sep 17, 2021, 4:38:10 PM

Word problems

There were 252 more cars than motorcycles in a car park. 1/4 of the number of cars was equal to 3/5 of the number of motorcycles. How many cars and motorcycles were there altogether?

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Guest Sep 17, 2021, 4:24:34 PM

Hard counting

FInd the number of 10-digit numbers, where the sum of the digits is divisible by 11.

Guest Sep 17, 2021, 4:14:00 PM

help geometry

(1) A circle centered at P with radius 10 and a circle centered at Q with radius 8 are externally tangent. Find PQ.

(2) How many common external tangents do two circles have?

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Guest Sep 17, 2021, 3:22:22 PM

The temperature of the pot of water is shown. The temperature of the water change -2.5 per minute.

The temperature of the pot of water is shown. The temperature of the water change -2.5 per minute.
A what was the temperature after 20 minutes.
B How many minutes did it take to cool to 100.3 f

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Guest Sep 17, 2021, 2:57:56 PM

help coordinates

The circle centered at (2, -1) and with radius 4 intersects the circle centered at (2, 5) and with radius sqrt(11) at two points A and B. Find (AB)^2.

Guest Sep 17, 2021, 2:55:59 PM

Can someone please help? I don't know how to answer these-

For a certain country, the national debt was 18.45 trillion. Use scientific notation to put a number like 18.45 trillion in perspective. Complete parts (a) through (c).
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a. Express read more ..

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Guest Sep 17, 2021, 2:45:08 PM

Help me pls !!!!! Thanks

A crate obtained apples and pears. There were 29 more apples than pears at first. After 1/3 of the apples were removed from the crate, there were 5 more apples than pears. What was the total number of apples and pears in the crate at first?

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Guest Sep 17, 2021, 2:24:23 PM

Help me to solve this problem

Catherine had some money at first. She gave 1/4 of her money to Anne. As a result, Anne had thrice as much as before. Then, Anne gave 1/2 of her money to Bernard. Bernard then had 1 1/2 times as much money as before. Anne still had $129 left. How much money read more ..

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Guest Sep 17, 2021, 2:20:11 PM

help domain

Find the domain of the real-valued function
f(x) = sqrt(-6x^2 + 25x - 4)

Give the endpoints in your answer as common fractions (not mixed numbers or decimals). read more ..

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Guest Sep 17, 2021, 2:13:55 PM

trying to study for a test, but i don't know the steps to solving this question

in 8 | 39,245,93d what are all values of d that make the statement true?

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Guest Sep 17, 2021, 1:55:57 PM

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