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vagabundo [1.1K]
3 years ago
6

What is the answer to 3/5 x 10/21 in simplest form???

Mathematics
2 answers:
hjlf3 years ago
8 0
First, let's make this easier. Think of 3/5 multiplied by 10/21 as different multiplication problems. First, you should multiply the numerators then the denominators. But before we actually multiply, we can cross simplify.

3       10
_        _ 
5        21    3 divided by 3= 1. 21 divided by 3 is 7. Then you can cross simplify                   again. 5 divided by 5 is 1. 10 divided by 5 is 2. So your                                   multiplication problem has now been put into simpler terms and                       smaller numbers. This makes it easier to solve so you don't have                     to multiply such big numbers together. 


Your new much simpler multiplication problem is 1/1 multiplied by 2/7. Your answer is 2/7 and it has been put into simplest form. 

(Sorry the explanation is so long. Hope this helps!)

jeka943 years ago
3 0
6/21 I think cause you can't go down any more
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Driving at an average speed of 52mph, how long will it take someone to take a 390 mile road trip?
iren2701 [21]

Answer:

7 & a half hours

Step-by-step explanation:

390÷52= 7.5hr or 7 & a half hours

5 0
3 years ago
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The sum of the length of any two sides of a triangle is greater than the length of the third side. And the abc, bc=4 and ac= 8-a
alisha [4.7K]

Answer:

ab<6 units

Step-by-step explanation:

One of the basic property of any triangle is that the sum of the length of any two sides of a triangle is always greater than the length of the third side.

Here we are given a triangle abc, in whicn bc=4

ac= 8-ab

If have to make some conclusion about ab.

As per the property discussed above

ab<ac+bc

ab<8-ab+4

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Hence the length of ab must be less than 6 units

5 0
2 years ago
Is 3/12 equivalent to 1/4?
il63 [147K]
For this question you should know that you can multiply both number in 1/4 by 3 and you will have:
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i hope this is helpful
have a nice day 
6 0
3 years ago
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I need to give the slope but I don’t know how someone help!
san4es73 [151]

Answer:

-4/2

Step-by-step explanation:

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7 0
3 years ago
Help me out please?<br>chapter : exponents and powers​
belka [17]

Answer:

\frac{125}{27}

Step-by-step explanation:

\frac{2^{-4} \times 15^{-3} \times 625}{5^2 \times 10^{-4}}

Lets expand all the composite numbers into prime numbers.

=> \frac{2^{-4} \times (3^{-3} \times 5^{-3}) \times 5^4}{5^2 \times (2^{-4} \times 5^{-4})}

Lets cancel 2^{-4} from numerator and denominator.

=> \frac{3^{-3} \times 5^{-3} \times 5^4}{5^2 \times 5^{-4}}

Using laws of exponents , lets solve this.

=> \frac{3^{-3} \times 5^{(-3 + 4)}}{5^{( 2 - 4)}}

=> \frac{3^{-3} \times 5^{1}}{5^{-2}}

=> 3^{-3} \times 5^{[1 - (-2)]}

=> 3^{-3} \times 5^{3}

=> \frac{5^3}{3^3} = \frac{125}{27}

4 0
2 years ago
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