MATHEMATICS HIGH SCHOOL

Which decimal number is 17/22 equal to?

Answers

Answer 1

Answer:

Answer with explanation:

A decimal number is terminating , if it's denominator is of the form $2^p \text{or} 2^p * 5^q \text{or} 5^q.$

The fraction or Rational number ,

$(17)/(22)=(17)/(11* 2)$

has both 2, and 11 in the denominator,it means this decimal number is non terminating repeating.

So, $(17)/(22)=0.72272727......\n\n=0.72\bar{27}$

Non terminating repeating decimal.

Answer 2

Answer: It is equal to 0.7727272727

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Kalon and his friend Marna own a chimney sweep service company. Working together, they can clean a chimney in 1 5/7 hours. If it takes Kalon 4 hours to clean a 20-foot chimney by himself, how long does it take Marna to clean the same size chimney by herself?

Answers

So to set up the equation we have:4M4+M=127
28M=12(4+M)
28M=48+12M
28K−12M=48
(28−12)M=48
16K=48
M=4816
M=3So Marna can clean the chimney alone in 3 hours

Final answer:

To find the time it takes for Marna to clean a 20-foot chimney by herself, we first determine the combined and individual rates of Marna and Kalon. We then subtract Kalon's rate from the combined rate to find Marna's rate and subsequently her individual cleaning time which is 3 hours.

Explanation:

The subject of this question is Mathematics, specifically dealing with the concept of rates and time. To solve this problem, we first need to express the combined rate of Kalon and Marna working together. The combined rate is expressed as 1 job per 1 5/7 hours, which simplifies to 7/12 of a chimney per hour.

Kalon's individual rate is 1 job per 4 hours, this simplifies to 1/4 of a chimney per hour. The formula we'll use is (1/Marna's time) = combined rate - Kalon's rate. Therefore, Marna's rate will be (7/12 - 1/4), simplified to 1/3 of a chimney per hour. Hence, Marna would require 3 hours to clean a 20-foot chimney by herself.

Learn more about Rates and Time here:

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This is the formula which I am asking you all

Answers

Answer:

That is literally still the same formula for mean.

Step-by-step explanation:

Hay can someone please help me what's
7x4+6-12/4

Answers

Answer:

Step-by-step explanation:

7×4+6-12÷4

multiply 7 and 4

28+6-12÷4

12÷4=3

28+6-3

28+6=34

34-3=31

anwer=31

What is 20% off of £1.85? ^_^

Answers

$p\%=(p)/(100)\n\n20\%=(20)/(100)=0.2\n\n20\%\ of\ \£1.85\ is\ 0.2\ *\ \£1.85=\£0.37$

£1.85 ________ 100 %
x ________ 20 %

100x = 20 . 1,85
100x = 37
x = 37 / 100
x = 0,37

is £0,37 !

I need to know the step by step working to get the answer 18

Answers

When you divide a number by a fraction, you should multiply the number by the reciprocal of the fraction. So if you make 1 1/3 an improper fraction you get 4/3. When you multiply 24 by the reciprocal, which is 3/4, you multiply it by the numerator and divide it by the denominator. So
(24 x 3) / 4
72 / 4
18

I need help figuring out how to do this.

Answers

SURFACE AREA:i was literally just working on surface area so (15×6=90)×2=180 and then (2.26×15=33.9)×2=67.8 and then (2.26×6=13.56)×2=27.12 and add all of them together to get 274.92

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