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Nady [450]
3 years ago
15

3n-(2+n) what value of n makes this expression equal to 6. 5,6,4 or 3

Mathematics
2 answers:
melomori [17]3 years ago
5 0

Answer:

4

Step-by-step explanation:

3n-(2+n)

3(4)-(2+4)

12-(6)

12-6

6

Art [367]3 years ago
5 0

Answer:

4

Step-by-step explanation:

3n-(2+n)

You can just put in the given numbers to try out the expression.

Let's do 4

3(4)-(2+4)

12-6

=6

Hope this helps :)

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I will mark brainlist for this science question please. I need to figure out where to put where. And what percentages. Your choi
ozzi

Answer:

Long wings: 0

Short wings: 100

Step-by-step explanation:

Genotype of the flies: ww

The cross will yield the genotype ww and the flies will express the recessive phenotype which is short wings.

The probability for long wings will be 0 as there is no dominant allele present. The probability for short wings will be 100 as all the flies will have short wings.

Hope that helps.

3 0
2 years ago
Jane's salary is increased by 2% to $30396. How much was her salary before the rise?
harina [27]
_award brainliest if helped!

so 102% = 30396
100% (original) = 30396/102*100 =29800

Her salary was $29800 before the rise
6 0
3 years ago
Read 2 more answers
Use distributive property to write an equivalent expression. Use paper and pencil to
just olya [345]

Answer:

A) 6Gn + 12 (or 6n+12, if that’s what you meant)

B) 4p²+9p

C) 5r²+20r

Step-by-step explanation:

A. If you meant 6(n+2)...

Multiply 6 by n and also 6 by 2:

6n + 12

B. Multiply p by 4p and also p by 9

4p²+9p

C. Multiply 5r by r and also 5r by 4

5r²+20r

Hope this helped!

8 0
3 years ago
Suppose we want to choose 6 letters, without replacement, from 15 distinct letters. (A) how many ways can this be done, if the o
Olenka [21]

Answer:

Below in bold.

Step-by-step explanation:

A.This is the number of combinations of 6 from 15

= 15C6

=  15! / (15-6)! 6!

= 5,005 ways.

B.  This is the number of permutaions of 6 from 15:

= 15! / (15-6)!

= 3,603,600 ways.

7 0
3 years ago
Ji-Hun and Kana are running a marathon. Due to the volume of people running, the starts occur in waves. Kana starts at 9:35 a.m.
iris [78.8K]

Answer:

23.52 miles

Step-by-step explanation:

Let us find the number of miles that they would have run.

Kana starts at 9:35 a.m. and runs at an average rate of 7 mph.

Let the time she has spent so far be t.

Speed is given as:

s = d / t

where d = distance and t = time

=> d = s * t

Therefore, for Kana:

d = 7 * t = 7t _____________(1)

Ji-Hun starts at 10:00 am (25 minutes after Hannah) and runs at an average rate of 8 mph.

25 minutes = 25/60 hour = 0.42 hour

So, his time (compared to Kana's) is t - 0.42.

therefore, for Ji-Hun:

d = 8 * (t - 0.42)

=> d = 8t - 3.36 ____________(2)

Equating (1) and (2):

7t = 8t - 3.36

=> 8t - 7t = 3.36

t = 3.36 hours

Therefore, let us find d:

d = 7 * 3.36 = 23.52 miles

So, Ji-Hun will catch up to Kana after 23.52 miles.

6 0
3 years ago
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