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lisabon 2012 [21]
3 years ago
10

What is 2(1+5x)-3x=72 solve for x please

Mathematics
2 answers:
Leona [35]3 years ago
8 0

Answer:

x= 10 is the answer

kirill [66]3 years ago
7 0

Answer:

x = 10

Step-by-step explanation:

2(1+5x)-3x=72

Distribute

2 + 10x -3x = 72

Combine like terms

2+7x=72

Subtract 2 from each side

2+7x-2 = 72-2

7x = 70

Divide by 7

7x/7 = 70/7

x = 10

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Which expression is equivalent to x2 − x − 6 x2 + 2x − 15 ? A) x + 3 x + 5 B) x + 2 x + 5 C) x + 3 x − 3 D) x + 2 x − 3
Tema [17]

Answer:

Well, I am not sure which one is equivalent to another, but I have some information that should help you find your answer.

Step-by-step explanation:

The simplified expression to x2 − x − 6 x2 + 2x − 15 would be equal to −5 x 2 + x − 15.

The simplified expression to x + 3 x + 5 would be equal to 4x + 5.

The simplified expression to x + 2x + 5 would be equal to 3x + 5.

The simplified expression x + 3 x − 3 would be equal to 4x − 3.

The last simplified expression to x + 2 x − 3 would be equal to   3x − 3.

Hope this helps, I am really sorry if I didn't answer your question properly, or the way you asked!

4 0
3 years ago
Read 2 more answers
What is the greatest common factor of the polynomial 40x^7+135x^4+5x^4
tensa zangetsu [6.8K]

5x^4

Step-by-step explanation:

simply we take 5x^4 bec. it can be divided by 40 and 135

7 0
3 years ago
The manager of a supermarket wants to obtain information about the proportion of customers who dislike a new policy on cashing c
alex41 [277]

Answer:

n = 61 costumers

Step-by-step explanation:

For calculating the number of costumers he should sample we use the next equation:

n = \frac{z_{1-\alpha/2}^{2}p(1-p)}{E^{2} }

                          Where E is the error that we are prepared to accept, in this  case E = 0.15

How we don't know the value of p, we can estimate it like p = 0.5

∝ = 1-0.98 = 0.02

1-∝/2 = 0.99

z_{0.99} = 2.33

n = \frac{(2.33^{2})(0.5)(1-0.5)}{0.15^{2} }

n = 60.32 costumers

n ≈ 61 costumers

4 0
3 years ago
Explain What Happens To The Volume Of A Sphere When
kati45 [8]
A. The volume is 8 times more
b. The volume is 27 times more
c. The volume is 64 times more
3 0
3 years ago
Quadrilateral ABCD is translated up and to the right and then rotated about point Q. Which congruency statement is correct?
valentina_108 [34]

Answer:ABCD = ZYXW

Step-by-step explanation:

ABCD = WXYZ

ABCD = ZYXW

ABCD WZYX

ABCD = ZWXY

9 0
3 years ago
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