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
yaroslaw [1]
3 years ago
7

Help asap 25 points worth pre alg x= y=

Mathematics
1 answer:
Mumz [18]3 years ago
8 0

Answer:

Firstly Substitute y=2x-5 into 5x-4y=-10

This will be 5x-4(2x-5)=10 now solve for x

5x-8x+20=-10

-3x=-30

X=10

Now sub x as 10 into the second equation y=2x-5

Y=2(10)-5

Y=15

You might be interested in
Identify 3 major arcs of circle that contain point A?
natita [175]

Answer:

Minor Arcs (two capital letters) Arcs that have a degree measure of less than 180 degrees.

Major Arc (three capital letters) Arcs that have a degree measure greater than 180 degrees.

Semi Circle (three capital letters) Arcs that have a degree measure equal to 180 degrees.Step-by-step explanation:

3 0
3 years ago
How do you find the answer to the dimensions of a square
Ksenya-84 [330]
Height and w and legenth
3 0
4 years ago
Read 2 more answers
HELP KE PLEASE HELP I NEED HELP
Lelechka [254]

Answer:

(3,2)

Step-by-step explanation:

The vertex is where the two rays meet at a point

The vertex is at x=3 and y =2

(3,2)

4 0
3 years ago
On her first quiz in social studies, Meg answered 92% of the questions correctly. On her second quiz, she answered 27 out of 30
madam [21]
There both the same score. she has the same score on each test. i hope this helps:)
8 0
3 years ago
Read 2 more answers
Angle x is a third quadrant angle such that cos x = -1/5.
Yuki888 [10]

Starting from the formula

\cos^2(x)=\dfrac{1+\cos(2x)}{2}

We can divide all the angles by 2 and we get

\cos^2\left(\dfrac{x}{2}\right)=\dfrac{1+\cos(x)}{2}

And finally

\cos\left(\dfrac{x}{2}\right)=\pm\sqrt{\dfrac{1+\cos(x)}{2}}

Angle x is a third quadrant angle, meaning that it is somewhere between 180 and 270. This implies that x/2 lies between 90 and 135. So, x/2 is a second quadrant angle, and its cosine is negative. This means that we can update the previous equation to

\cos\left(\dfrac{x}{2}\right)=-\sqrt{\dfrac{1+\cos(x)}{2}}

You know that

\cos(x)=-\dfrac{1}{5}

so, plug that value into the expression and you'll get cos(x/2).

4 0
3 years ago
Other questions:
  • Aliaa is skating down a ramp. The wheels on her skateboard have diameters of 60 mm.
    8·2 answers
  • The amount of time t (in minutes) that it takes to put out a fire varies inversely with G, the volume of water used (in hundreds
    15·1 answer
  • The equation of a circle is x^2 + y^2 -4x + 2y -11 =0 . What are the center and the radius of the circle? Show your work.
    11·1 answer
  • An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o
    13·2 answers
  • In a set of real numbers, the first number less then -3 is -4<br> true <br> or<br> false
    11·2 answers
  • Bill Jorden has a 48-month installment loan with a fixed monthly payment of
    15·1 answer
  • How many different 4-digit security codes are possible if all of the digits must be odd?
    13·1 answer
  • For a loan of $40,000 at 12% for 10 years, how much do you wind up paying back?
    7·2 answers
  • The data from the U.S. Census Bureau for 1980-2010 shows that the median weekly earnings of full-time
    8·1 answer
  • Pankaj borrows rupees 57,000 to buy a used car and is charged the rate of interest 6% per annum. if the term of his borrowing is
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!