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
REY [17]
3 years ago
15

Lines

Mathematics
1 answer:
Klio2033 [76]3 years ago
6 0

Answer:

x= 45

Step-by-step explanation:

angle EOB = 90 degrees so angle EOA must also be 90 degrees. Divide 90 by 2 = 45. You can figure out the rest from now on.

You might be interested in
Porfavor necesito ayuda en esto.<br> Es para hoy :(
yan [13]

Answer:

17

Step-by-step explanation:

6 0
3 years ago
I need help with the numbers 9 and 10 please help
Katen [24]
9] Rocky Falls would be 13.4°F at sunrise.

Use the equation 23.1 + (-9.7) = x, where x is the temperature at sunrise (13.4)
23.1 + (-9.7) = 23.1 - 9.7
Solve so that x = 13.4

10] Jamie originally had $263.25 in her account.

Just add how much she spent (135.75 + 32) to how much she ended up with (95.5)

135.75 + 95.5 + 32 = 263.25


If you are asking how much she has if she started out with $95.50 before going to the Mets game,

95.5 - (135.75 + 32) = -$72.25
Or 95.5 - 135.75 - 32, same result of -72.25


3 0
3 years ago
Each child ticket for a ride costs $3, while each adult ticket costs $5. if the ride collected a total of $115, and 33 tickets w
yaroslaw [1]
There were 8 of the $5 and 25 $3
7 0
2 years ago
100 Points PLEASE ANSWER ASP! Will Give BRAINLIST!
VikaD [51]

Let's work to solve this system of equations:

y = 2x ~~~~~~~~\gray{\text{Equation 1}}y=2x        Equation 1

x + y = 24 ~~~~~~~~\gray{\text{Equation 2}}x+y=24        Equation 2

The tricky thing is that there are two variables, xx and yy. If only we could get rid of one of the variables...

Here's an idea! Equation 11 tells us that \goldD{2x}2x and \goldD yy are equal. So let's plug in \goldD{2x}2x for \goldD yy in Equation 22 to get rid of the yy variable in that equation:

\begin{aligned} x + \goldD y &= 24 &\gray{\text{Equation 2}} \\\\ x + \goldD{2x} &= 24 &\gray{\text{Substitute 2x for y}}\end{aligned}  

x+y

x+2x

​    

=24

=24

​    

Equation 2

Substitute 2x for y

​  

Brilliant! Now we have an equation with just the xx variable that we know how to solve:

x+2x3x 3x3x=24=24=243=8Divide each side by 3

Nice! So we know that xx equals 88. But remember that we are looking for an ordered pair. We need a yy value as well. Let's use the first equation to find yy when xx equals 88:

\begin{aligned} y &= 2\blueD x &\gray{\text{Equation 1}} \\\\ y &= 2(\blueD8) &\gray{\text{Substitute 8 for x}}\\\\ \greenD y &\greenD= \greenD{16}\end{aligned}  

y

y

y

​    

=2x

=2(8)

=16

​    

Equation 1

Substitute 8 for x

​  

Sweet! So the solution to the system of equations is (\blueD8, \greenD{16})(8,16). It's always a good idea to check the solution back in the original equations just to be sure.

Let's check the first equation:

\begin{aligned} y &= 2x \\\\ \greenD{16} &\stackrel?= 2(\blueD{8}) &\gray{\text{Plug in x = 8 and y = 16}}\\\\ 16 &= 16 &\gray{\text{Yes!}}\end{aligned}  

y

16

16

​    

=2x

=

?

2(8)

=16

​    

Plug in x = 8 and y = 16

Yes!

​  

Let's check the second equation:

\begin{aligned} x +y &= 24 \\\\ \blueD{8} + \greenD{16} &\stackrel?= 24 &\gray{\text{Plug in x = 8 and y = 16}}\\\\ 24 &= 24 &\gray{\text{Yes!}}\end{aligned}  

x+y

8+16

24

​    

=24

=

?

24

=24

​    

Plug in x = 8 and y = 16

Yes!

​  

Great! (\blueD8, \greenD{16})(8,16) is indeed a solution. We must not have made any mistakes.

Your turn to solve a system of equations using substitution.

Use substitution to solve the following system of equations.

4x + y = 284x+y=28

y = 3xy=3x

4 0
3 years ago
Read 2 more answers
Who can answer this Algebraic Expression for me?<br><br>3(m-5)+m​
egoroff_w [7]
Simply. 4m - 5.

3(m-5)+m

First, use distributive property

3m-15+ m

Combine like terms

3m + m

The answer

4m - 15


3 0
2 years ago
Other questions:
  • -4x+2+x=-10 what is x
    5·2 answers
  • Find all the real zeros of x3-2x2-5x+6=0.
    5·1 answer
  • Prime factorization of 42 help plz.
    14·2 answers
  • What is the value of N below?<br>VVVVVVVVVVVVVVVVVVV
    7·2 answers
  • Type an ordered pair: <br> 2x-y=69<br> 4y=x
    9·1 answer
  • (50 Points)
    5·1 answer
  • If a, b and care nonzero real numbers, which expression is equivalent to a (b - c) - b(a - c)?
    10·1 answer
  • Which is the product of and 9?<br> A 54<br> B) 27<br> C 18<br> D) 6<br> He uses
    8·1 answer
  • 1. Prove that<br><br> 2 tan x / 2- sec^2 x = tan 2x.
    7·1 answer
  • Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!