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Inessa [10]
3 years ago
5

HELP PLEASE WITH SIGMA NOTATION!!!!! PLEAASE

Mathematics
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

13+8(n-1) is the pattern of how this series goes on where n is the number of entities being added.

Write n at the top of sigma notation which is 5 here. And write the pattern infront of sigma notation which is 13+8(n-1)here.

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Solve for x 3/4×+5/4=4×​
Effectus [21]

Answer:

x = \frac{5}{13}

Step-by-step explanation:

Given

\frac{3}{4} x + \frac{5}{4} = 4x

Multiply through by 4 to clear the fractions

3x + 5 = 16x ( subtract 16x from both sides )

- 13x + 5 = 0 ( subtract 5 from both sides )

- 13x = - 5 ( divide both sides by - 13 )

x = \frac{-5}{-13} = \frac{5}{13}

6 0
3 years ago
Read 2 more answers
Adam has x x dimes and y y nickels. He has no less than 18 coins worth a maximum of $1.50 combined. Solve this system of inequal
Dvinal [7]

Answer:

The number of nickles is 6  

The number of dims is 12 .

Step-by-step explanation:

Given as :

Sum of total number of dims and nickels coins = 18

The value of total combination = $1.50

Let The total number of dims = d

Let The total number of nickels = n

1 nickles = $0.05

1 dims = $0.1

<u>According to question</u>

Total number of dims and nickels coins = number of dims + number of nickels

Or, d + n = 18            .........1

And

$0.1 ×d + $0.05 ×n = $1.50

Or, 0.1 d + 0.05 n = 1.50            .........2

Now, Solving eq 1 an eq 2

0.1 × (d + n) - (0.1 d + 0.05 n) = 0.1 × 18 - 1.50

Or, (0.1 d - 0.1 d) + (0.1 n - 0.05 n) = 1.8 - 1.50

Or, 0 + 0.05 n = 0.3

Or, 0.05 n = 0.3

∴  n = \dfrac{0.3}{0.05}

i.e n = 6

So, The number of nickles = n = 6

Put the value of n int eq 1

∵ d + n = 18

Or, d = 18 - n

Or, d = 18 - 6

i.e d = 12

So, The number of dims = d = 12

Hence, The number of nickles is 6 and the number of dims is 12 . Answer

4 0
3 years ago
35 points!
kifflom [539]

Answer:

22

Step-by-step explanation:

Im sure because my sister got the same question on a test and she put 22 and got it right

3 0
3 years ago
Read 2 more answers
ANSWER QUICKLY~ PLEASE HELP
kakasveta [241]

Answer:

A

Step-by-step explanation:

A solution to a system of linear equations is the point at which they intersect. These graphs do not intersect as they are parallel. There is no solution.

8 0
3 years ago
A survey asked students whether they would like a drama club, a step team, both clubs, or neither club. The results are below:
Dmitry [639]

Hi, you've asked an incomplete question. Here are the remaining questions:

a) Describe what each region in the Venn diagram represents.

Region I: In drama club, not in step team.

Region II: In both clubs.

Region III: In step team not in drama.

Region IV: Not in either club.

b) How many students were in only one of the two clubs?

c) How many students were in the drama club or in the step team?

d) How many students were surveyed?

Attached is the Venn diagram depicting the regions.

Explanation:

b) By adding the number of students that like drama club and those that like step club we can derive the answer:  34 + 27 = 61.

c) By adding 34 + 27 + those that like both (14) = 75.

d) The total number of students surveyed is gotten by summing any number in attached the diagram: 34 + 27 + 14 + 13 = 88.

7 0
3 years ago
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