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3 years ago

Find the reciprocal of 2 / -5 × 3 / -7

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

7 0

Answer:

$\frac{35}{6}$

Step-by-step explanation:

$\frac{2}{ - 5} \times \frac{3}{ - 7} \\ = \frac{6}{35}$

<h3>Now turn the answer upside down</h3>

$\frac{6}{35} = = > \frac{35}{6}$

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Plz help! Convert 6/9 into fractions with a denominater of 27 A. 6/7 B.21/27 C. 9/27 D.18/27

givi [52]

D. 6 x 3 = 18 and 9 x 3 = 27, hope this helps :)

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3 years ago

How to solve 45y to the second power plus 15y minus 10 ?

Lerok [7]

Answer:

Either y = $\frac{-2}{3}$ or, y = $\frac{1}{3}$

Step-by-step explanation:

We have to solve the following quadratic equation

45y² + 15y - 10 =0

Now, dividing both sides with 5 we get, 9y² + 3y -2 =0

Hence, to solve the above equation we have to factorize the left-hand part of the equation.

So, 9y² + 3y - 2 =0

⇒ 9y² +6y -3y -2 =0

⇒ (3y +2) (3y -1 ) =0

⇒ Either (3y +2) =0 or (3y -1) =0

⇒ Either y = $\frac{-2}{3}$ or, y = $\frac{1}{3}$ (Answer)

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3 years ago

Nicolas sold 86 newspapers on Monday 79 on Tuesday and 68 on Wednesday and 83 on Friday how many newspapers did Nicholas sell on

natima [27]

Answer:

Step-by-step explanation:

86+79+68+83=316

391-316=75

8 0

3 years ago

Read 2 more answers

Mr green makes some compost he mixes soil, manure and leaf mould in the ratio 3:1:2 mr greenmakes 72 literes of the compost. How

love history [14]

Answer:

$36\ liters\ of\ soil$

Step-by-step explanation:

we know that

The ratio of soil, manure and leaf mould is $3:1:2$

That means

For every 6 liters of the compost, he use 3 liters of soil

so by proportion

Find how many liters of soil does he use for 72 liters of compost

$\frac{3}{6}=\frac{x}{72}\\ \\x=3*72/6\\ \\x=36\ liters\ of\ soil$

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3 years ago

QUICK

katrin [286]

Answer:

7502.88m^2

here u go hope it helps

7 0

3 years ago

Find the reciprocal of 2 / -5 × 3 / -7 ​

Find the reciprocal of 2 / -5 × 3 / -7