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
Lana71 [14]
3 years ago
7

Help me this and show your work

Mathematics
1 answer:
krek1111 [17]3 years ago
6 0
First set 2n-1=4n+5 and solve for n. once you have n plug it back into each equation and then multiply those two together. Do the same to n-3 and 2n+1. Once you get the answer to both subtract them
You might be interested in
What is the slope line perpendicular to the equation 4x+3y=9
aleksandrvk [35]

Answer:

m=3/4

Step-by-step explanation:

first, let's put the line 4x+3y=9 from standard form (ax+by=c) into slope-intercept form (y=mx+b)

we have the equation 4x+3y=9

subtract 4x from both sides

3y=-4x+9

divide by 3

y=-4/3x+3

perpendicular lines have slopes that are negative and reciprocal. If the slopes are multiplied together, the result is -1

so to find the slope of the line perpendicular to the line y=-4/3x+3, we can take the slope of y=-4/3x+3 (-4/3) multiply it by a variable (this is our unknown value), and have that set to -1

(m is the slope value)

-4/3m=-1

multiply by -3/4

m=3/4

therefore the slope of the perpendicular line is 3/4

hope this helps!! :)

7 0
3 years ago
License plates are made using 3 letters followed by 2 digits. How many plates can be made if repetition of letters and digits is
Helga [31]

Answer:

26^3\times10^2 = 1757600

option B is correct

Step-by-step explanation:

We have 5 spaces in the license plate:

_ _ _ _ _

we have 26 available letters, and 10 available numbers.

starting with letters:

  • how many choices do i have to place the 1st letter? 26.

26 _ _ _ _

  • how many choices do i have to place the 2nd letter? 26 (since we're allowed to repeat letters)

26 26 _ _ _

  • how many choices do i have to place the 3rd letter? 26

26 26 26 _ _

we've used all the places for letters, (note: the exact position of the letters doesn't matter here, the first letter could've been placed anywhere in _ _ _ _ _, but the amount of possible choices for letters would always be 26).

let's move on to numbers.

  • how many choices do i have to place the 1st number? 10

26 26 26 10 _

  • how many choices do i have to place the 2nd number? 10

26 26 26 10 10

we've completed our number plate. Next we'll simply multiply all these numbers to get all the possible arrangements in which numbers and letters can be displayed on a license place.

26^3\times10^2 = 1757600

option B is correct

8 0
3 years ago
.24 of the jackets for sale at a clothing store are blue. If this represents 15% of all jackets in the
bulgar [2K]

Answer:

165 jackets or 85%

Step-by-step explanation:

8 0
2 years ago
Help me out on this one pliz i need help
nikitadnepr [17]
First guess: 1200
Second guess: 106
8 0
3 years ago
Read 2 more answers
Armando read 20 pages of his 200-page book in 4 hours. At this rate, how long will it take him to read the entire book?
Marysya12 [62]
B- 40 hours because 4/20 = 0.2 and 0.2*200=40
3 0
3 years ago
Other questions:
  • Which of these numbers is composite? 3,5,19,71,85
    11·2 answers
  • A. Y=0<br> B. X=0<br> C. X=2<br> D. Y=1
    10·1 answer
  • The table below shows the number of marbles of different colors in a bag: Color of Marbles Number of Marbles Pink 5 Blue 2 Green
    15·2 answers
  • Jesse found 5 seashells on the beach today. This is 1 less than one-third he found yesterday. Which equation, when solved for x,
    14·1 answer
  • ​Yesterday, Jack drove 33 and one half
    8·2 answers
  • need ASAP!! will give brainliest!!! if u dont know the answer pls dont answer I NEED ANSWERS TO EITHER QUESTION NO NEED TO SHOW
    8·1 answer
  • Giving brainliest for CORRECT awnser.
    8·2 answers
  • Amplitude of h(x)=-4sin(2x-7)+3
    11·1 answer
  • Determine whether the expression is a polynomial. If it is a polynomial, find the degree
    15·1 answer
  • Figure B is a scaled copy of Figure A<br><br> What is the scale factor from Figure A to Figureb
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!