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
otez555 [7]
3 years ago
7

Could someone help me with these questions. I know I have some answers for them but I got them wrong so I need help to get the r

ight answet

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
7 0
Using external angle theorme

3x-20=110+x
2x-20=110
2x=130
x=65
Vera_Pavlovna [14]3 years ago
6 0
I am not quite sure but I hope it helps!

You might be interested in
Evaluate the expression 3x² + 2x - 4 for x =-2.
marin [14]

Answer:

4

Step-by-step explanation:

3x² + 2x - 4

3(-2)² + 2(-2) - 4

3(4) - 4 - 4

12 - 4 - 4

12 - 8

= 4

4 0
3 years ago
Solve the inequality for x. show each step of the solution -12x-0.4>0.2(36.5x+80)-55
Darina [25.2K]

Let's solve your inequality step-by-step.

−12x−0.4>0.2(36.5x+80)−55

Step 1: Simplify both sides of the inequality.

−12x−0.4>7.3x−39

Step 2: Subtract 7.3x from both sides.

−12x−0.4−7.3x>7.3x−39−7.3x

−19.3x−0.4>−39

Step 3: Add 0.4 to both sides.

−19.3x−0.4+0.4>−39+0.4

−19.3x>−38.6

Step 4: Divide both sides by -19.3.

−19.3x

−19.3

>

−38.6

−19.3

x<2

Answer:

x<2

8 0
3 years ago
A pack of 8 batteries cost 4.72!What is cost per battery?
Mrrafil [7]
4.72 x 1 = 4.72
8 x X =8x
We need to let the X alone so
4.72 divided 8 = 0.59
1 battery = 0.59
8 0
2 years ago
How many solutions does the system have?
omeli [17]

Answer:

B. No solutions

Step-by-step explanation:

8x+2y=14

8x+2y=4

These linear equations are in standard form, and the Ax values are the same (8x) and the By values are the same (2y).  The only value that is the different is the C values (14 and 4), which will be the cause of a no solution for this system of equations.

7 0
2 years ago
Read 2 more answers
In △ABC, BM is a median, △BMC is equilateral and MC = 3cm. Through M is drawn line l∥AB that intersects CB at point N. Find:
ruslelena [56]

Answer:

m∠ABC = 60°

The distance from C to AB = 3 cm

The distance from l to AB = 1.5 cm

Step-by-step explanation:

The median of ΔABC = BM

The length of MC = 3 cm

Type of triangle given as ΔBMC  = Equilateral triangle

Line MN is parallel to AB and passes through M intersecting CB at N

Given that BM is a median, we have;

MC = AM = 3 cm

BM  = MC = CB = 3 cm, from ΔBMC  = Equilateral triangle

CN = NB by midpoint theorem

∴ CB = CN + NB = 2·CN = 3 cm

The distance from C to AB = CB = 3 cm

The distance from C to AB = 3 cm

CN = 3/2 = 1.5

CN = NB = 1.5

The distance from l to AB = CN = 1.5 cm

The distance from l to AB = 1.5 cm

m∠ABC = m∠BMC = m∠MBC = 60° Interior angles of an equilateral triangle.

m∠ABC = 60°

6 0
2 years ago
Other questions:
  • Find the sum of 3+9+27...+6561
    15·1 answer
  • a store sells small notebooks for $8 and a large notebook for $10.if a student buys 6 notebooks and spends $56,how many of each
    11·2 answers
  • The salaries of the president and the Vice President of a certain country total $562,500 a year. If the president makes $237,400
    7·1 answer
  • Write each phrase as an algebraic expression
    10·1 answer
  • Which list contains only composite numbers?
    9·2 answers
  • What is the equation for the line in slope-intercept form?
    5·1 answer
  • What is -2(7-y)+4=-4?
    15·1 answer
  • Write in standard form
    7·1 answer
  • .Fred is making a bouquet of carnations and roses. The carnations cost $5.25 in all. The roses cost $1.68 each. How many roses d
    6·1 answer
  • The sum of three consecutive numbers is equal to 4 times the largest number minus 29. What is the smallest of the three numbers?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!