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AURORKA [14]
3 years ago
5

Get the common denominator

Mathematics
1 answer:
myrzilka [38]3 years ago
4 0

Answer:

(x+7)(x-2)

Step-by-step explanation:

Multiply the second fraction by (x-2) so that the value of it doesn't change

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0.75 or 3/4 is the answer (degree)

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Find the sum of 10 + 5i and its complex conjugate.
ra1l [238]

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20.

Given, complex number is 10+5i .

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A jar of jam contains 55% fruit.How much fruit would I need for ten 454g jars of jam?​
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3 years ago
Ivan has $1098 worth of $12 and $14 stock shares. The number of $14 shares is seven more than
Dafna1 [17]

Answer:

Number of 12$ Shares? 25

Number of 14$ Shares? 57

Step-by-step explanation:

Let x = number of $12 shares.

Let y = number of $14 shares.

"Ivan has $1098 worth of $12 and $14 stock shares."
12x + 14y = 1098

The number of $14 shares is seven more than twice the number of $12 shares.

y = 2x + 7

We have a system of equations.

12x + 14y = 1098

y = 2x + 7

We can use the substitution method since the second equation is already solved for y. Substitute 2x + 7 for y in the first equation.

12x + 14(2x + 7) = 1098

12x + 28x + 98 = 1098

40x = 1000

x = 25

There are 25 $12 shares.

y = 2x + 7 = 2(25) + 7 = 57

There are 57 $14 shares.

Check:

25 × $12 + 57 × $1`4 = $300 + $798 = $1098

The total value is correct, so the answer is correct.

4 0
2 years ago
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