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liraira [26]
4 years ago
13

An auditorium has 28 seats in the front row. Each row behind the front has 3 more seats than the row directly in front of it. Ho

w many seats are there in the 11th row?
Mathematics
1 answer:
KIM [24]4 years ago
8 0

Answer:

28+3=31

each seat behind the front seat had 31seats

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PLS TELL ME Is this correct? PLS TELL ME​
Lesechka [4]

Answer:

check the last 2 in each section

Step-by-step explanation:

when you multiply both sides of an inequality, you have to switch the signs. so > would become <, and vice versa.

6 0
3 years ago
** Which of the following is parallel to the line 2x + 4y = 16 (A) y = 2x + 5 (B) y = -x + 4 (C) y = -x + 8 (D) y = 2x + 5 =-​
andreev551 [17]

Answer:

None of them.

Step-by-step explanation:

Each and every straight line is of one kind in terms of its pattern: it can be presented in the view of y = kx + b: k is the slope or gradient of the line, b is the y-intercept of the line. I will not let the cat out of the bag if I say that any parallel lines do not intersect one another, hence they should have the same value of coefficient k.

2x + 4y = 16 \Leftrightarrow x + 2y = 8 \Leftrightarrow 2y = -x + 8 \Leftrightarrow y = - \frac{1}{2}x + 4

Therefore, our line has k = - \frac{1}{2} and b = 4 coefficients.

(A) k = 2, b = 5;

(B) k = -1, b = 4;

(С) k = -1, b = 8;

(D) k = 2, b = 5;

Recapitulating this: none of them have the same coefficient k, thus none of them suit us.

8 0
2 years ago
Identifying Properties Which property is shown? If m∠ABC = m∠CBD, then m∠CBD = m∠ABC reflexive property substitution property sy
Burka [1]

Answer:

Symmetric property

Step-by-step explanation:

In this question, we are given a set of options to choose the correct answer from which gives the definition of the property in the question.

The correct answer here is the symmetric property. So why is this correct?

In proper terms, we refer to this property as the symmetric property of congruence.

It is a way of referring to the fact that when writing the way two congruent angles are equal to each other by the property of congruence, we can move in either of the two directions.

Either way we write, we are absolutely correct to indicate that both angles are equal due to the property of congruence.

7 0
3 years ago
The numbers of seats in the first 12 rows of a high-school auditorium form an arithmetic sequence. The first row has 9 seats. Th
Daniel [21]
A₁ = 9
a₂ = 9+2  → a₂ = a₁ + 2. Since it's an AP, d, the common difference is 2

1) Then the recursive formula is :
a(n) = a(n-1) + 2

2) Explicit formula:
It's an AP, with first term a₁, d= common difference and n = number of term, which is the number of rows in this problem.
the value of the nth term is given by the formula is:
value of nth term  = a₁ + (n-1).d

3) Number of seats in the 12th row:

9 + (12-1).2 = 31 seats


7 0
3 years ago
PLEASE HELP
densk [106]

For this case we have that by definition, a function is of the form:

y = f (x)

So, we have the following system of equations:

y = -6x + 2\\y = -2x + 4

Equating the equations we have:

-6x + 2 = -2x + 4

Adding 2x to both sides of the equation:

-6x + 2x + 2 = 4\\-4x + 2 = 4

Subtracting 2 from both sides of the equation:

-4x = 4-2\\-4x = 2

Dividing between -4 on both sides of the equation:

x = \frac {2} {- 4}\\x = - \frac {1} {2}

Thus, the value of the variable "x" is -0.5.

Answer:

-0.5

6 0
4 years ago
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