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
yKpoI14uk [10]
3 years ago
7

Help plz and check just to make sue what is this

Mathematics
1 answer:
padilas [110]3 years ago
3 0

use cross  products to solve

5* (n-9) = 8*n

distribute

5n-45 = 8n

subtract 5n from both sides

-45 = 3n

divide both sides by 3

-15 = n

You might be interested in
Suppose you draw a card from a well shuffled deck of playing cards what is probability of drawing a ace
Tasya [4]
So there are a totally of 52 cards right?(not counting jokers because jokers are not in official cards)
And there are 4 aces right?
So there are 52 outcomes and 4 of them are aces.
So when we write probabilities we write it in fraction form where the total number of outcomes is the denominator and the ones you want to get are the numerator OK?
So the total number is outcomes is 52 and becomes the denominator and 4 the number of aces become the numerator.
So 4/52 right?
And we now have to simplify it right?
And so we divide by the highest common factor right?
In this case 4 because there isn’t other numbers that are factors and greater than 4.
So 4 divided by 4/52 is 1/13 right?
4 goes into 4 1 time and 13 times into 52.
So your answer is 1/13
3 0
3 years ago
Help i don’t know how to do this
lyudmila [28]

Answer:

ok so first you add all the prices together.

$9:00+$7:00+$8:00+$6:00+$4:00=34

then divide 34 by the number of prices.

34/5

then you get the mean

$6.8 is the mean

Step-by-step explanation:

7 0
2 years ago
Write an equation for the line that is parallel to the given line and that passes through the given point. y = –6x + 2; (–1, 2)
kap26 [50]
Parallel=same slope
Y=mx+b
Sub in the slope and point to solve for b
2=-6(-1)+b
2=6+b
2-6=b
-4=b
The equation is y=-6x-4; the answer is B
Hope this helps!
6 0
3 years ago
20 POINTS!!!!!!!! A picture is photocopied by using a scale factor of 2. Each side of the photocopy of the picture is
LUCKY_DIMON [66]

Answer:

Each side of the photocopy of the picture is  enlarged by a factor of 2 so it would be A.

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Help Please Thank You In Advance​
vagabundo [1.1K]

Split it in half it’s 8 bro.........

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which mesurment isnt eqivelent
    11·1 answer
  • If the volume of sand is increasing at a constant rate, is the height increasing at a constant rate? Explain.
    6·1 answer
  • Find the mean set of this data set 25,45,12,34,3645,19,20
    11·2 answers
  • 5^7 + 5^6 = _* 6<br><br> AWARDING BRAINLIEST
    10·2 answers
  • Can someone help me out?
    8·2 answers
  • A bank account has a beginning balance of $560.00. After 6 months, the balance in the account has increased to $572.60. What int
    5·2 answers
  • Plz hurry <br><br>evaluate the expression<br> a+b where a=8 and b=19
    12·1 answer
  • Can someone help me please with these questions
    10·2 answers
  • I Need help with this math and there’s another
    11·2 answers
  • Which three side lengths best describe the triangle in the diagram?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!