3 years ago

Multiplying a number by 2 and then adding 5 gives the same number as subtracting a number from 23. What is the number?

1 answer:

3 0

2 * x + 5 = 23 - x <=> 3 * x = 18 <=.> x = 6;

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olasank [31]

Answer: $a_n=2(5)^{n-2}$

Step-by-step explanation:

The explicit rule for a geometric sequence is: $a_n=a_1(r)^{n-1}\quad \text{where}\ a_1\ \text{is the first term and r is the ratio}$

The information provided is: a₁ = $\dfrac{2}{5}$ and r = 5

$a_n=\dfrac{2}{5}(5)^{n - 1}\\\\.\quad = 2(5)^{n-2}$

4 0

2 years ago

kykrilka [37]

The answer is all real numbers for x

because simplifying, you get both sides are equal

5 0

2 years ago

Yanka [14]

Answer:

because the gross is the total amount of money they get without the subtraction of taxes that they have to pay

Step-by-step explanation:

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3 years ago

Alexxandr [17]

Answer:

height AB is 8 cm

Step-by-step explanation:

AB= √AC^2- BC^2

= √(10)^2- (6)^2

= √100-36

= √64

= 8

3 0

3 years ago

katrin2010 [14]

Congruent since all angles are equivalent to each other.

5 0

3 years ago