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GREYUIT [131]
3 years ago
9

Find the equation 3(x +5)+(3x +5)​

Mathematics
1 answer:
Katarina [22]3 years ago
5 0

Answer:

=6x+20

Step-by-step explanation:

3(x+5)+(3x+5)

Solution:

=3x+15+3x+5

=6x+20

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If you write the function as a sequence, what would be the
Verdich [7]

9514 1404 393

Answer:

  3

Step-by-step explanation:

The common difference of an arithmetic sequence is the slope of the equation that describes it. The slope formula is useful in this case:

  m = (y2 -y1)/(x2 -x1)

  m = (219 -213)/(4 -2) = 6/2 = 3

The common difference of the corresponding arithmetic sequence is 3.

6 0
3 years ago
Expressions that show the quotient of a number n and 4
zaharov [31]

the quotient of a number n and 4

n:4=\dfrac{n}{4}

8 0
3 years ago
Jennifer has been saving for college for 57 months. The first month, she saved $11. She was able to save more money each month t
Ivanshal [37]
This is an arithmetic sequence with first term (a) = 11, number of terms (n) = 57, sum of nth term (Sn) = 19,779.
Let the amount of money she saved more each month be d, then
Sn = n/2(2a + (n - 1)d)
19,779 = 57/2(2(11) + (57 - 1)d)
19,779 = 28.5(22 + 56d)
19,779 = 627 + 1,596d
19,779 - 627 = 1,596d
d = 19,152/1,596 = 12

Therefore, she saved $12.00 more each month.
8 0
3 years ago
Find the dimensions of a rectangle with perimeter 68 m whose area is as large as possible. (If both values are the same number,
Lina20 [59]

Answer:

<h2>Length is 17m and Breadth is also 17m</h2>

Step-by-step explanation:

The perimeter of a rectangle is expressed as 2(L+B) where;

L is the length and B is the breadth of the triangle.

P = 2(L+B)

68 = 2(L+B)

L+B = 68/2

L+B = 34

L = 34 - B ... 1

Area of the rectangle A = LB... 2

Substituting equation 1 into 2 will give;

A = (34-B)B

A = 34B-B²

To maximize the area of the triangle, dA/dB must be equal to zero i.e

dA/dB = 0

dA/dB = 34 - 2B = 0

34-2B = 0

2B = 34

Dividing both sides of the equation by 2 we will have;

B = 34/2

B = 17

Substituting B = 17 into equation 1 to get the length L

L = 34-17

L = 17m

This shows that the rectangle with maximum area is a square since L = B = 17m

The dimension of the rectangle is Length = 17m and Breadth = 17m

8 0
3 years ago
Find the interquartile range for the data. {50, 46, 56, 55, 54, 51, 45, 50, 47}
levacccp [35]

Answer:

51

Step-by-step explanation:

I think the answer is 51 because you have to find the number between the first three to the middle

6 0
3 years ago
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