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Ratling [72]
3 years ago
9

What is the interquartile range of the following numbers: 5, 7, 8, 8, 10, 12, 14, 15, 16, 18, 20?

Mathematics
2 answers:
Nitella [24]3 years ago
8 0
The median is 12 and first quartile is 8 and 3rd is 16. Now 16-8= 8. IQR. Hope this helps
Finger [1]3 years ago
5 0
The median is 12 so:-
First quartile is 8 and 3rd quartile is 16 
so the interquartile range = 16 - 8 = 8 Answer
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A house is being purchased at the price of $138,000.00. The 30-year mortgage has a 10% down payment at an interest rate of 4.875
Mama L [17]

Answer:

  $238,600

Step-by-step explanation:

The amount being borrowed is 100% -10% = 90% of the purchase price, or ...

  0.90 × $138,000 = $124,200.

Then the monthly payment can be computed using the amortization formula:

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

  A = 124200(.04875/12)/(1 -(1 +.04875/12)^(-12·30)) ≈ 657.28

and the total repaid is ...

  (360 months) × ($657.28/month) = $236,619.58*

The cost of mortgage insurance is considered part of the cost of the loan. That amount is ...

  (77 months) × ($25.88/month) = $1992.76

so the total amount paid for the loan is ...

  $236,619.58 +1992.76 = $238,612.34

The cost of the loan is about $238,600.

_____

* In figuring the total repayment cost, we used the full-precision value for the loan payment. The actual repayment amount will depend on the rounded value of the loan payment and the way the final payment is made. When rounded to the nearest $100, these details become unimportant.

3 0
3 years ago
Frieda and Joanne are laying a 17 meter track for model trains. They completed one stretch that is 7.44 meters long and another
Dvinal [7]
D is the correct answer. Hopes that helps.
3 0
3 years ago
Is 81 divisible by 3?
AlexFokin [52]
Yes 81 is divisible by 3
the answer is 27
because 81 divided by 3 = 27

3 0
3 years ago
Read 2 more answers
Discrete Math
andrezito [222]

Answer:

Part c: Contained within the explanation

Part b: gcd(1200,560)=80

Part a: q=-6         r=1

Step-by-step explanation:

I will start with c and work my way up:

Part c:

Proof:

We want to shoe that bL=a+c for some integer L given:

bM=a for some integer M and bK=c for some integer K.

If a=bM and c=bK,

then a+c=bM+bK.

a+c=bM+bK

a+c=b(M+K) by factoring using distributive property

Now we have what we wanted to prove since integers are closed under addition.  M+K is an integer since M and K are integers.

So L=M+K in bL=a+c.

We have shown b|(a+c) given b|a and b|c.

//

Part b:

We are going to use Euclidean's Algorithm.

Start with bigger number and see how much smaller number goes into it:

1200=2(560)+80

560=80(7)

This implies the remainder before the remainder is 0 is the greatest common factor of 1200 and 560. So the greatest common factor of 1200 and 560 is 80.

Part a:

Find q and r such that:

-65=q(11)+r

We want to find q and r such that they satisfy the division algorithm.

r is suppose to be a positive integer less than 11.

So q=-6 gives:

-65=(-6)(11)+r

-65=-66+r

So r=1 since r=-65+66.

So q=-6 while r=1.

3 0
3 years ago
Ratios 5 boys to 6 girls
zavuch27 [327]

Answer: 5:6


Step-by-step explanation:


5 0
3 years ago
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