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chubhunter [2.5K]
3 years ago
10

What is 4/2/3 x 1/3/7 ?

Mathematics
2 answers:
Tatiana [17]3 years ago
6 0

Answer: 2/63

Step-by-

maks197457 [2]3 years ago
3 0

Answer:

Hello,There! I'll be glad to help!

<h2>Question</h2>

what is 4/2/3 x 1/3/7 ?

<h2>Answer</h2>

6\frac{2}{21}

Step-by-step explanation:

Rewriting our equation with parts separated

4 +\frac{2}{3} + 1 +\frac{3}{7}

Solving the whole number parts

4 + 1 =5

Solving the fraction parts

\frac{2}{3}+\frac{3}{7} =?

Find the LCD of 2/3 and 3/7 and rewrite to solve with the equivalent fractions.

LCD = 21

\frac{14}{21} +\frac{9}{21} =\frac{23}{21}

Simplifying the fraction part, 23/21,

\frac{23}{21} =1\frac{2}{21}

Combining the whole and fraction parts

5 + 1+ \frac{2}{21} =6\frac{2}{21}

Hence, The answer is 6\frac{2}{21}

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Convert 25/4 to a mixed number​
mylen [45]

Answer:

6 1/4

Step-by-step explanation:

First find a product of 4 which is the closest to 25, 4 x 6 = 24 then subtract the number from the product you just found, 25 - 24 = 1, so the answer is 6 1/4

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Josephine can correct her students' test papers in 9 hours, but if her teacher's assistant helps, it would take them 7 hours. Ho
kirill [66]

Using the together rate, it is found that it would take the assistant 31 hours and 30 minutes to do it alone.

<h3>What is the together rate?</h3>

It is the sum of each separate rate.

In this problem, the rates are given as follows:

  • Josephine: 1/9.
  • Assistant: 1/x.
  • Together: 1/7.

Hence:

\frac{1}{9} + \frac{1}{x} = \frac{1}{7}

\frac{x + 9}{9x} = \frac{1}{7}

9x = 7x + 63

2x = 63

x = 31.5.

It would take the assistant 31 hours and 30 minutes to do it alone.

More can be learned about the together rate at brainly.com/question/25159431

7 0
2 years ago
Can i get help ASAP!!! I’ll mark brainliest :)
horrorfan [7]

Answer:

for both?

Step-by-step explanation:


4 0
3 years ago
15. a)
frutty [35]

Answer:

The correct answer is - A)8% B) 3%

Step-by-step explanation:

A) Let assume:

the cost price of the goods - $y.

the selling price of the goods - $x.

Given: The retailer sold at 4% discount, or 0.96x (100% - 4% = 96%). Since the goods were sold to make 20% profit, therefore it was sold for:

1.2y (100% + 20% = 120%).

Solution:

The refrigerator was sold at 13% VAT at Rs. 10848:

then,

=> 1.2y + 13%(1.2y) = 10848

=> 1.2y + 0.156y = 10848

=> 1.356y = 10848

=> y = 8000

Thus, the cp is Rs 8000.

The selling price is:

=> 0.96x = 1.2y

=> 0.96x = 1.2(8000)

=> x = 10000

The sp is Rs. 10000

For a profit of 15%, that is 1.15(8000) = 9200, the discount is:

(1 - discount)10000 = 9200

1 - discount = 0.92

Discount = 1 - 0.92 = 0.08 or 8%

B) Let C & M as cost price & marked price of the scanner machine respectively.  

(1 + 20/100)*C = 41400

or (6/5)*C = 41400

or C = (5/6)*41400

= 34500 (Rs)

(1 - 10/100)*(1 + 15/100)*M = 41400

or (9/10)*(23/20)*M = 41400

or M = (10/9)*(20/23)*41400

= 40000 (Rs)

Let R% as the reduction in the percent in discount  

(1 - 10/100 + R/100)*(1 + 15/100)*M

= (1 + 20/100 + 4/100)*C

or (9/10 + R/100)*(23/20)*40000

= (31/25)*34500

or 9/10 + R/100

= (20/23)(31/25)*(345/400)

or R/100 = 0.93 - 0.9 = 0.03

or R = 3%

7 0
3 years ago
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