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xz_007 [3.2K]
3 years ago
5

Select each expression that is equivalent to 3(n+6).

Mathematics
2 answers:
Tasya [4]3 years ago
5 0
Just set each expression equal to 3(n+6). If you get the same answer on both sides (x=x) then that expression is equivalent! :)
Sophie [7]3 years ago
5 0

Answer:

n=-6

Step-by-step explanation:

Equate the equation to zero

3(n+6)=0

Open the bracket

3n+18=0

Substrate 18 from both sides

3n=-18

Divide both sides by 3

n=-6

Therefore the answer to that given equation is -6

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A greeting card uses a geometric design containing 4 congruent kites. The card is 4 inches wide and 8 inches long. What is the a
Gnom [1K]

Answer: 4 sq. in

Step-by-step explanation:

From the question, the card is 8 inches long. Therefore, the length of the vertical diagonal of 1 kite + the length of the vertical diagonal of other kite = 8

Since we have been told that the kites are congruent, therefore the length of the vertical diagonal of both kites will be thesame

Therefore, 2(length of the vertical diagonal of 1 kite) = 8

Therefore, the length of the vertical diagonal of 1 kite will be= 4 inches

The width of the card = 4 inches

Therefore, the length of the horizontal diagonal of 1 kite + the length of the horizontal diagonal of another kite =4

Since the kites are congruent, therefore, the length of the horizontal diagonal of both kites are the same

Therefore, 2(length of the horizontal diagonal of 1 kite) = 4

Therefore, the length of the horizontal diagonal of 1 kite will be= 2 inches

Therefore, the length of the vertical diagonal of the kite= 4 inches and the horizontal diagonal= 2 inches

So, Area of kite = pq/2

Where p and q are diagonals of kite

Area of kite = (4×2)/2

=8/2

= 4 inches square

3 0
3 years ago
Read 2 more answers
16x-8-14x=10 show work
kirill115 [55]

Answer:

x=9

Step-by-step explanation:

Original equation: 16x-8-14x=10

Combine like terms: 2x-8=10

Add 8 to both sides: 2x=18

Divide by 2 on both sides: x=9

Let me know if this helps!

5 0
3 years ago
Read 2 more answers
Will award brainliest if your correct
alexdok [17]
Hello!

First you have to add the number of fish

52 + 61 + 87 = 200

Then you find the percentage of grass carps

61/200 = 0.305

Then you multiply what you just got with the estimated sample

800 * 0.305 = 244

The answer is 244

Hope this helps!
6 0
3 years ago
Read 2 more answers
The Daily Info charges a fee of plus per week to run an ad. The People's Paper charges per week. Write an inequality to represen
musickatia [10]

Complete question :

The Daily Info charges a fee $650 of plus $80 per week to run an ad. The People's Paper charges $145 per week. Write an inequality to represent the number of weeks an ad must run for the total cost at the Daily Info to be less expensive than the cost at the People's Paper. Let w be the number of weeks the ad runs in the paper

Answer:

650 + 80w < 145w

Step-by-step explanation:

Given that :

Number of weeks ad will run = w

Daily Info total cost :

650 + 80w

The People's Paper total cost:

145w

Number of weeks ad should run For cost at daily info to be less expensive than peoples choice';

Daily Info total cost < people's choice

650 + 80w < 145w

650 < 145w - 80w

650 < 65w

650/65 < 65w / 65

10 < w

w > 10

5 0
3 years ago
Factor the expression -18y-27
BartSMP [9]

Answer:

-9(2y+3) Tip: Download photo math lol : )

6 0
3 years ago
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