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sesenic [268]
3 years ago
15

reply to this with answer Which best proves why the expressions 4 (x + 3) + 2 x and 6 (x + 2) must be equivalent expressions?

Mathematics
1 answer:
Ivan3 years ago
3 0

Answer:

Given expressions are equivalent.

Step-by-step explanation:

Given expression:

4 (x + 3) + 2x and 6 (x + 2)

Find:

Given equivalent expressions or not

Computation:

By taking LHS

4 (x + 3) + 2x

4x + 12 + 2x

6x + 12

By taking RHS

6 (x + 2)

6x + 12

We say that

LHS = RHS

So,

Given expressions are equivalent.

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The ratio of the number of boys to the number of girls in a dance club is 5 : 6. After 6 more boys join the club, the ratio beca
UkoKoshka [18]

44

Step-by-step explanation:

let boys be x and girls be y

x/y=5/6

x=5y/6....(1)

if 6 boys join the club that will be x+6

Therefore:

(x+6)/y=13/12

13y=12x+72

13y-12x=72

Recall x=5y/6

Therefore:

13y-12(5y/6)=72

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13y-10y=72

3y=72

y=24 people

Therefore:

x=(5*24)/6

x=20 people

Therefore people in the club before are 20+24=44

5 0
3 years ago
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storchak [24]

Answer:

It would be 2:10

Step-by-step explanation:

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3 years ago
I'll give brainliest if correct
kvv77 [185]

Answer:

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Step-by-step explanation:

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3 years ago
2 Points
liraira [26]

Two or zero expresses the possible number of positive real  solutions for the given polynomial equation.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equation:

        x^{3}-4 x^{2}-7 x+28=0

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We know the formula, a^{2}-b^{2}=(a+b)(a-b), make use of this, we get

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Hence, from the above expression, we have three values of x as x= 4, 2.64 and -2.64

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How do I write the ordered pair that represents yz. Then how do I find the magnitude of yz. Y(14,-23), Z(23,-14)
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Step-by-step explanation:

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