1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
scoundrel [369]
3 years ago
7

Please solve 21=5n-2(n-3)

Mathematics
2 answers:
Stella [2.4K]3 years ago
8 0

21 = 5n-2(n-3)

21 = 5n-2n+6

21-6 = 3n

n=15/3

n=5

grigory [225]3 years ago
3 0
5=n because you multiply -2 times n then -3 then you add -2n with 5n then subtract 6 from both sides and finally divide by 3
You might be interested in
456,912-37,800 estimate
allsm [11]

i think it might be around 440,112

7 0
2 years ago
Division of fractions 12/15 divided by 1/5
zimovet [89]
12/15÷1/5

when dividing fractions, all you have to do is multiply the first number by the second number's reciprocal
(reciprocal is denominator over numerator)

12/15÷1/5
12/15×5/1

remember when multiplying fractions it's the the two numerators multiplied together over the two denominators multiplied

12/15×5/1
60/15
4

The answer is 4
4 0
3 years ago
Read 2 more answers
Where does the point (0, - 3) lie?
gregori [183]

An ordered pair is written like this, ( x, y ). In this case x = 0 and y = -3. On a graph the vertical line is the y-axis and the horizontal line is the x-axis. The origin is point ( 0, 0 ). To the left of the origin on the x-axis is the negative number line and to the right is the positive number line. On the y-axis, south of the origin is the negative number line and north is the positive number line. When you plot a point on a graph you do x first, so if x equals 1, you would move one right, -1, one left. IF y were to equal 2 then from the place where you are on the x-axis, 1, you would move two up, -2, two down. In this case x = 0 so you would stay at the origin, and y = -3 so you would move 3 down. So ( 0, -3 ) would lie negative y-axis. The answer is D.

3 0
3 years ago
Find the circumference of a circle with radius, r = 10.5m.Give your answer in terms of π<br> .
forsale [732]

Answer:

Circumference of circle =2πr=2π×10.5=21πm

Step-by-step explanation:

8 0
3 years ago
Find the slope of the given points (3, 4) and (7,-4).<br> A)-1/2<br> B) 2<br> C) -2<br> D) 0
kakasveta [241]

Answer:

-2

Step-by-step explanation:

y = kx + n

When you insert the given points you get

3k + n = 4 \\

7k + n =  - 4 \\

Than you multiply the first one by - 1 and sum it with the second to get rid of n

4k =  - 8 \\ k =  - 2

7 0
3 years ago
Other questions:
  • What else would need to be congruent to show that ABC = PQR by SSS?
    9·2 answers
  • Appliances at Discount City Store are on sale for 70% of the original price. Eli has a coupon for an 18% discount on the sale pr
    12·2 answers
  • Easy math! 7th / 20 points
    8·2 answers
  • Use the given data to find the minimum sample size required to estimate the population proportion. Margin of error: 0.028; confi
    11·1 answer
  • Lol I’m struggling very much
    14·1 answer
  • If n(p(a)) = 256. find n(a)​
    8·1 answer
  • Please help answer !:) <br><br> ( WILL GIVE BRAINLST)
    6·2 answers
  • PLZZ SEND HELP!!!!!!!!!!<br> WILL GIVE YOU BRAINLIEST! <br> Find
    12·1 answer
  • How do I do this? (Will give Brainliest) (Instructions if you could please)
    14·2 answers
  • I need need help fast (4a-7b+5+)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!