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
algol13
3 years ago
7

If n=3 what would 4(2+n)-6 equal?

Mathematics
1 answer:
Annette [7]3 years ago
4 0

Answer:

14

Step-by-step explanation:

4(2+n)-6

Replace n with 3:

4(2+3)-6

Solve brackets first:

4\times 5-6

Multiply next:

20-6

Subtract:

14

You might be interested in
Find k so that the distance from (–1, 1) to (2, k) is 5 units. k= k= *there are two solutions for 2*
dalvyx [7]

Answer:

k = -3

k =5

Step-by-step explanation:

d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\d = 5\\(-1,1) =(x_1,y_1)\\(2,k)=(x_2,y_2)\\

5=\sqrt{\left(2-\left(-1\right)\right)^2+\left(k-1\right)^2}\\\\\mathrm{Square\:both\:sides}:\quad 25=k^2-2k+10\\25=k^2-2k+10\\\\\mathrm{Solve\:}\:25=k^2-2k+10:\\k^2-2k+10=25\\\\\mathrm{Subtract\:}25\mathrm{\:from\:both\:sides}\\k^2-2k+10-25=25-25\\k^2-2k-15=0\\\\\mathrm{Solve\:by\:factoring}\\\\\mathrm{Factor\:}k^2-2k-15:\quad \left(k+3\right)\left(k-5\right)\\\mathrm{Solve\:}\:k+3=0:\quad k=-3\\

\mathrm{Solve\:}\:k-5=0:\quad k=5\\\\k =5 , k=-3

7 0
3 years ago
Read 2 more answers
Find the value of x<br> A.)25<br> B.)140<br> C.)5<br> D.)1
Vlada [557]

Answer:

25 = x

Step-by-step explanation:

The angles are vertical angles and vertical angles are equal

5x+15 = 6x -10

Subtract 5x from each side

5x-5x+15 = 6x-5x -10

15 = x - 10

Add 10 to each side

15+10 = x-10+10

25 = x

5 0
3 years ago
Read 2 more answers
A pair of boots is 30dollars more than a pair of sandals. A pair of sandals cost s dollars each. Emily purchased 2 pairs of boot
babunello [35]

Answer: The expression representing the amount of money spent is 5x+60 by Emily.

Step-by-step explanation:

Since we have given that

Let the cost price of per pair of sandals be 's'

Let the cost price of per pair of  boots be 's+30'.

Number of pairs of boots = 2

Number of pairs of sandals = 3

Total cost would be

2(s+30)+3s\\\\=2s+60+3s\\\\=5s+60

Hence, the expression representing the amount of money spent is 5x+60 by Emily.

5 0
3 years ago
3. if y varies directly as x and y=23.1 when x=36.3, find y when x=11.
STatiana [176]

Answer:

the answer is 5 because thats the varible

Step-by-step explanation:

8 0
3 years ago
Find the coordinates of the orthocenter for XYZ with X(-5,-1) Y(-2,4), Z(3,-1)
V125BC [204]

9514 1404 393

Answer:

  (-2, 2)

Step-by-step explanation:

The orthocenter is the intersection of the altitudes. The altitude lines are not difficult to find here. Each is a line through the vertex that is perpendicular to the opposite side.

Side XZ is horizontal, so the altitude to that side is the vertical line through Y. The x-coordinate of Y is -2, so that altitude has equation ...

  x = -2

__

Side YZ has a rise/run of -1/1 = -1, so the altitude to that side will be the line through X with a slope of -1/(-1) = 1. In point-slope form, the equation is ...

  y -(-1) +(1)(x -(-5))

  y = x +4 . . . . . . . . subtract 1 and simplify

The orthocenter is the point that satisfies both these equations. Using the first equation to substitute for x in the second, we have ...

  y = (-2) +4 = 2

The orthocenter is (x, y) = (-2, 2).

4 0
3 years ago
Other questions:
  • tim ate four more cookies than Alice. Bob ate as many cookies as tim.If x represents the number of cookies Alice ate,which expre
    15·2 answers
  • Tyrone claims that the first step to simplify this expression is to raise the numerator and denominator to the third power. Alis
    9·2 answers
  • Sams dog weighs 72 pounds the vet suggests that for the dogs health its weight should decrease by 12.5 percent According to the
    9·1 answer
  • Someone help me ?? Please
    10·1 answer
  • Reflect 4, 1 in the x-axis
    10·1 answer
  • Convert 12 1/2% into a decimal (It isn't 12.50)<br>Convert 12 1/2% into a fraction (It isn't 25/2)
    11·1 answer
  • QUICK! WHOEVER GETS CORRECT FIRST GETS BRAINLIEST AND 20 POINTS!
    13·2 answers
  • Find the product :<br>1) 6/10 × 10/6 × 5/9<br>2) 6/10 × 4/3 × 10/20​
    9·2 answers
  • The meteorologist predicts that tomorrow calls for a 60% chance of rain. What exactly does this mean?
    7·1 answer
  • Can anyone tell me what is 2/5 x 3/2 ?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!