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Tju [1.3M]
3 years ago
9

the ramirez family comes home from vacation to find their mailbox overflowing with mail. there are 6 more magazines than there a

re letters. there are twice as many bills as letters. there are 1/3 as many bills as pieces of junk mail. there are 18 pieces of junk mail. how many magazines are there?
Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

9 magazines

Step-by-step explanation:

To solve this problem you will want to work backwards. Start with the junk mail. There is 18 junk mail and if there are 1/3 as many bills as junk mail then you will need to multiply 18 * 1/3. This equals 6 bills. If there is twice as many bills as letters then you will need to divide bills(6) by 2 which equals 3. If there are 6 more magazines than letters then you need to add 6 to the letters (3). 3 + 6 = 9

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What is the value of the interquartile range of the dea below?<br><br> 4 5 8 13
Lunna [17]
So first you have to find the median, to do this you use the formula (n+1)/2 with n being how many numbers there are.
As there are 4 numbers we can substitute it into the formula to make (4+1)/2 which is 2.5
Then you find the 2nd place and the 3rd place (which are 5 and 8) and find exactly the middle of them which is 6.5 (the median)

To find the lower quartile we take the 2.5 from earlier and divide it by 2 to make 1.25 so we find where that place is in the number. 4 is the first place and then we find what 1/4 is and add that on to make 4.25 which is the lower quartile.

Then you do 2.5+1.25 to find the upper quartile to make 3.75 so we find where that is in the numbers which is in-between 8 and 13 so it will be 8+1.22 to make 9.22

So to find the interquartile range you do the upper quartile takeaway the lower quartile so 9.22-4.25 which is 4.97 and that is the answer
5 0
3 years ago
Read 2 more answers
What is the ratio of 132 boys to 89 girls
marysya [2.9K]
132:89 I think is the ratio. :)

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3 0
3 years ago
Write the ratio 6 1/9 tons to 6 1/2 tons as a ratio of whole numbers using fractional notation. Write in simplest form.
Tanzania [10]
What's this "<span>13/255/99/2110/117" all about?

Write the ratio described:

6 1/9 tons        55       2          110
--------------- = ----- * ------- = -----------  This is the desired ratio.
 6 1/2 tons         9        13         117</span>
4 0
3 years ago
William is setting up for folding chairs for a meeting he arranges the chairs and seven rows of the same link he has three chair
DiKsa [7]

Answer:

William has a total of 66 chairs.

Step-by-step explanation:

Let the number of chairs in each row be 'x'.

Also let the Total number of chairs be 'y'.

Given:

If he arranges the chairs in seven rows of the same length he has three chairs left

Number of rows = 7

Number of chairs left = 3

Now we can say that;

Total number of chairs will be equal to number of chairs in each row multiplied by Number of rows plus Number of chairs left.

framing in equation form we get;

y=7x+3

Also Given:

If he arranges the chairs in five rows of the same length he has 21 chairs left

Number of rows = 5

Number of chairs left = 21

Now we can say that;

Total number of chairs will be equal to number of chairs in each row multiplied by Number of rows plus Number of chairs left.

framing in equation form we get;

y=5x+21

Now we know that Total number of chairs are same.

Hence we can say that both the equations are equal.

7x+3=5x+21

Combining like terms we get;

7x-5x=21-3\\\\2x= 18

Dividing both side by 2 we get;

\frac{2x}{2}=\frac{18}{2}\\\\x=9

So we can that there are 9 chairs in each row.

Now to find the total number of chairs he has we will substitute value of x in any of the equation we get;

y =7x+3\\\\y=7\times9+3\\\\y=63+3 =66

Hence William has a total of 66 chairs.

8 0
4 years ago
In how many ways can the letter of word number taken two at a time
Nitella [24]

Answer:

So the number of ways of choosing two distinct letters at a time is (42)=6. We can then add the duplicate pairs which are O,O and N,N to give a total of 8 possible pairs.

3 0
3 years ago
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