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
salantis [7]
3 years ago
11

Find mZYCD

Mathematics
1 answer:
yulyashka [42]3 years ago
4 0

Answer:

B)140

Step-by-step explanation:

So a line is=180 and the interior angles of a triangle= 180, so I did some manipulations

1. 100 + (5x+5) + <ECD = 180. But we also know that (21x-7) + <ECD=180. With some manipulation we can find that <ECD= 180 - (21x-7), so we can plug that into the other equation

2. Now: 100 + (5x+5) + (180- (21x-7))= 180

3. Solve:

105+5x+180-21x+7=180

112-16x=0

112=16x

x=7

4. Plug x=7 into 21x-7= 140

You might be interested in
What is right less a number is less than or equal to seventeen
USPshnik [31]

Answer:

x≤17

Step-by-step explanation:


5 0
3 years ago
What would be the length and width of a 50" TV that has an aspect ratio of 4:3?
Reika [66]

Check the picture below.

4 0
3 years ago
98 Points! MATH SOLVING SYSTEMS OF LINEAR EQUATIONS
photoshop1234 [79]

Answer:

40 Tickets

80 Tickets

Step-by-step explanation:

To find how many tickets it will take to break even, we use the formula:

Break Even In Units = \dfrac{FixedCost}{SalesPricePerUnit-VariableCost}

Our variables are:

Fixed Cost = $200

Sales Price = $10

Variable Cost = $5

Let's plug in our values into the formula.

Break Even In Units = \dfrac{200}{10-5}

Break Even In Units = \dfrac{200}{5}

Break Even In Units = 40

So the class needs to sell a total of 40 Tickets to break even.

Since we know that it takes 40 tickets to break even a $200 Fixed cost. To make a profit of $200, we simply multiply the number of tickets sold by 2.

Number of tickets for $200 profit = 40 x 2

Number of tickets for $200 profit = 80 Tickets.

So the class needs to sell 80 Tickets to make a $200 Profit.

5 0
3 years ago
What is the solution to this system of equations? {x+y=6x=y+2
Contact [7]

Answer:

5x = (-2)

Step-by-step explanation:

x + y - 6x = y + 2

x - 6x = 2

-5x = 2

5x = (-2)

3 0
3 years ago
Suppose 90 out of 120 people said they like to work out and 5 out of every 18 of the people who like to work out have a gym memb
dem82 [27]
216/ 120 times 90 divided by 18 times 5 and the answer is 45
5 0
3 years ago
Read 2 more answers
Other questions:
  • during the week, the Toronto stock exchange made the following gains and losses. Monday -150, Tuesday +106, Wednesday -47, Thurs
    12·1 answer
  • Which ratio is smaller 3/5 or 7/10
    5·1 answer
  • John runs a computer software store. Yesterday he counted 121 people who walked by the store, 66 of whom came into the store. Of
    7·1 answer
  • Decide if the following probability is classical, relative frequency, or subjective.You calculate that the probability of random
    7·1 answer
  • If the area of a square is 36 square unit what si the length of a side of the square​
    13·2 answers
  • What is the quotient and remainder of (4x^3-3x^2+x+7)/(x-2)
    6·1 answer
  • What represents the inverse of the function f(x)=4x
    6·1 answer
  • So for translation when it says to move up 6 how do I solve that (ex. -6, -10)
    14·1 answer
  • What is the probability that a student chosen at random has a GPA less than 3.00?
    11·1 answer
  • A research center project involved a survey of 846 internet users. It provided a variety of statistics on internet users. (a) Th
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!