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gtnhenbr [62]
3 years ago
13

What is the answer to the equation 7/9+1/7+3/5

Mathematics
2 answers:
Pavel [41]3 years ago
4 0

Answer:

479/315

Step-by-step explanation:

1.) Add: 7/ 9  + 1 /7  = 7 · 7 /9 · 7  + 1 · 9 /7 · 9  = 49 /63  + 9 /63  = 49 + 9 /63  = 58 /63

The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 7) = 63. The fraction result cannot be further simplified by cancelling.

In words - seven ninths plus one seventh = fifty-eight sixty-thirds.

2.) Add: the result of step

No. 1 + 3 /5  = 58 /63  + 3 /5  = 58 · 5 /63 · 5  + 3·63 /5·63  = 290 /315  + 189 /315

= 290 + 189 /315  = 479 /315

The common denominator you can calculate as the least common multiple of the both denominators - LCM(63, 5) = 315. The fraction result cannot be further simplified by cancelling.

In words - fifty-eight sixty-thirds plus three fifths = four hundred seventy-nine three-hundred fifteenths.

Eva8 [605]3 years ago
3 0

Answer:

Step-by-step explanation:

1.52063492063

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A frame is 9in wide and 6 in tall. If it reduces to a width of 3 in then how tall will it be?
Anarel [89]

Given

A frame is 9in wide and 6 in tall.

If it reduces to a width of 3 in

Find out the  how tall will it be .

To proof

As given in the question

A frame is 9in wide and 6 in tall.

reduces to a width of 3 in

now as shown in the table given below

This table shows that the  width of a frame is directly proportional to the height (tall) of the frame.

let us assume that the height of the frame after reduces width to 3in be = x

than the equation becomes  

\frac{original\ width}{original\ height} = \frac{reduces\ width }{reduces\ height}

put the all the value

we get

\frac{9}{6} = \frac{3}{x}

solve the  above

x = \frac{6\times3}{9}

x = 2in

therefore 2in tall will be the frame .

Hence proved



6 0
3 years ago
Given: -1/2x &gt; 6.<br><br>Choose the solution set. 
elena55 [62]

Answer:

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Step-by-step explanation:

-1/2x > 6

Multiply each side by-2.  This will flip the inequality

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x <-12

8 0
3 years ago
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Answer:

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