1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
leonid [27]
3 years ago
10

Adam, ben, Cathy and dana share some lollies. First Adam takes 2/3 of the lollies, then Ben takes 1/4 of the remainder, and the

Cathy takes 1/3of what was left. Dana gets all the rest. What fraction of the original number of lollies does Dana get?
Mathematics
1 answer:
rosijanka [135]3 years ago
4 0
A = 2/3......remainder 1/3
B = 1/4(1/3) = 1/12
2/3 + 1/12 = 8/12 + 1/12 = 9/12 reduces to 3/4 remainder 1/4
C = 1/3(1/4) = 1/12

3/4 + 1/12 = 9/12 + 1/12 = 10/12 reduces to 5/6 remainder 1/6

so Gana gets 1/6

check...
adam gets 2/3 or 8/12
ben gets 1/12
cathy gets 1/12
Gana gets 1/6 or 2/12
added = 12/12 or 1....correct

Dana gets 1/6 <==


You might be interested in
Which is bigger 5miles and 8 ft or 8,800yards
Alchen [17]
5 miles and 8 ft because 8,800 yard is equal to 5 miles and 5 miles and 8 ft is larger than 5 miles
7 0
3 years ago
Someone please help! Thxx
tangare [24]

Answer:

E, needs more info to be determined

Step-by-step explanation:

We know that Kai takes 30 minutes round-trip to get to his school.

One way is uphill and the other is downhill.

He travels twice as fast downhill than uphill.

This means that uphill accounts for 20 minutes of the round-trip and downhill accounts for 10 minutes of his trip.

However, even with this information, we do not know how far his school is.

In order to figure out how far away his school is, we would need more information about the speed at which Kai is traveling.

Simply knowing that he travels twice as fast downhill is not enough.

This question could only be solved by knowing how many miles Kai travels uphill or downhill in a given time.

3 0
3 years ago
What is the sign of −4ab when a&gt;0 and b&lt;0?
AVprozaik [17]

Answer:

A

Step-by-step explanation:

We have the expression:

-4ab

And we want to find its sign given that a>0 and b<0.

Notice that the expression is already negative since we have -4.

a>0 means that a is positive. Therefore, we can ignore it since it won’t do anything.

b<0 means that b is negative. Therefore, we will have two negatives being multiplied together. Hence, this will make a positive.

Therefore, the sign of our expression will be positive.

We can see this with an example. Let a=1 (1>0) and let b=-1 (-1<0). Then:

-4(1)(-1)=4

So, the sign is positive.

Hence, the answer is A.

7 0
3 years ago
Twenty one children and three teachers went to the movies. The total bill was $105. The price for
MrRissso [65]

Answer:

c = price of child ticket = $4.25

a = price of adult ticket = $4.25 + $1.00 = $5.25

Step-by-step explanation:

A child ticket costs c and an adult ticket costs a = c + 1.

21 children pay c dollars each for admission, and

3 teachers pay c + 1 dollars each for admission.

Thus,

21c + 3(c + 1) = $105, and

21c + 3c + 3 = $105, so that:

24c = $102

c = price of child ticket = $4.25

a = price of adult ticket = $4.25 + $1.00 = $5.25

3 0
3 years ago
The test scores of a geometry class are given below. 90, 75, 72, 88, 85 The teacher wants to find the variance for the class pop
ella [17]
The data given as a whole would be called ungrouped data. Now to get the variance, you will need the formula:

s^2=   <u>Σ(x-mean)^2</u>
                   n      

x = raw data
mean = average of all data
n = no. of observations
s^2 = variance

Now we do not have the mean yet, so you have to solve for it. All you need to do is add up all the data and divide it by the number of observations. 

Data: <span>90, 75, 72, 88, 85        n= 5  
</span>Mean=<u>Σx</u>
            n
Mean = <u>90+75+72+88+85 </u>  = <u>410</u> = 82
                        5                        5

The mean is 82. Now we can make a table using this.

The firs column will be your raw data or x, the second column will be your mean and the third will be the difference between the raw data and the mean and the fourth column will be the difference raised to two. 

90-82 = 8
8^2 =64

75-82 = -7
-7^2 =49

72-82 = -10
-10^2=100

88-82=6
6^2 = 12

85-82=3
3^2=9

Now you have your results, you can now tabulate the data:

 x      mean         x-mean        (x-mean)^2     
90       82                8                      64                       
75       82               -7                      49
72       82              -10                    100
88       82                6                       36
85       82                3                       9

Now that you have a table, you will need the sum of (x-mean)^2 because the sigma sign Σ in statistics, means "the sum of."

64+49+100+36+9 = 258

This will be the answer to your question. The value of the numerator of the calculation will be 258.

 
<u>
</u>
6 0
4 years ago
Other questions:
  • Help assap with this question
    14·1 answer
  • 30 POINTS!!!! I NEED AN ANSWER!!PLEASE HELP!
    13·1 answer
  • How can you solve this problem? Please help!!
    13·1 answer
  • Graph the line with: a slope of -5 and y intercept of 4. PLEASE HELP
    8·1 answer
  • What is the first step to simplify the expression 5x – x(2 – 3x) 2?
    15·1 answer
  • PLEASE HELP ME I need it fast don’t explain
    11·1 answer
  • Can anyone show me how to figure this out.
    15·1 answer
  • Please Help!!!!!<br> Prove that polynomials are not closed under division.
    9·1 answer
  • There are 21 juice bottles out of which 7 bottles are full. 7 are half-full and the remaining 7 are empty to divided amongst 3 f
    9·1 answer
  • What does postulate mean?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!