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dlinn [17]
3 years ago
12

Solve the following system of equations: x − 2y = 5 2x − 4y = 10

Mathematics
1 answer:
emmasim [6.3K]3 years ago
5 0
\left\{\begin{array}{ccc}x-2y=5\\2x-4y=10&|divide\ both\ sides\ by\ (-2)\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}x-2y=5\\-x+2y=-5\end{array}\right}\\.\ \ \ \ \ \ \ \ \ \ \ 0=0-true\\\\Answer:infinitely\ many\ solutions\    \left\{\begin{array}{ccc}x\in\mathbb{R}\\y=\dfrac{x-5}{2}\end{array}\right
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Parallel Lines Cut by a Transversal: Maze
CaHeK987 [17]

Start from Start Here square, the pointer to the next question to resolve is given by the solution to the equation in the current square

The values of the Maze are as follows;

  1. x = 10
  2. x = 8
  3. x = -9
  4. x = 5
  5. x = 11
  6. x = 3
  7. x = -5
  8. x = 9
  9. x = 7
  10. x = -7

Reason:

The solutions are;

10·x + 15 = 12·x - 5  by alternate interior angles theorem

  • ∴ x = 10

6·x + 6 = 5·x + 14 by alternate exterior angles theorem

  • ∴ x = 8

x + 109 = 100 by corresponding angles theorem

  • ∴ x = -9

11·x + 5 + 120° = 180° by same side interior angles theorem

  • ∴ x = 5

11·x - 1 = 10·x + 10 by corresponding angles theorem

  • ∴ x = 11

35·x + 5 = 110 by corresponding angles theorem

  • ∴ x = 3

x + 85 + x + 105 = 180 by same side interior angles theorem

  • ∴ x = -5

7·x - 3 + 12·x + 12 = 180° by same side interior angles theorem

  • ∴ x = 9

19·x - 3 = 130 by alternate interior angles theorem

  • ∴ x = 7

x + 67 = 60 by alternate interior angles theorem

  • x = -7

Learn more here:

brainly.com/question/10623667

brainly.com/question/11708384

7 0
3 years ago
Will give brainliest if right
Alex787 [66]

Answer:

the answer is d to the problem

6 0
3 years ago
Read 2 more answers
membership in a digital library has a $5 startup fee and then cost $9.95 per month memberships in a video streaming service cost
UNO [17]
With this information you can write the expression
9.95m + 5 = 7.99m
This demonstrates the cost for each one after m months.

3 0
3 years ago
Solve y=x²+7 for x for apexvs homeschool 2019​
Molodets [167]

Hello!

To solve for x means to isolate x:

y = x^2 + 7

y - 7 = x^2

sqrt(y - 7) = x

Answer:

x = sqrt(y - 7)

Hope this helps if it did please make brainliest!

7 0
3 years ago
A circle with radius of 1 cm sits inside a 11 cm x 12 cm rectangle.
s2008m [1.1K]

Answer:

125.72

Step-by-step explanation:

radius equals pi(r)2

rectangle equals b times h

radius is 6.28

rectangle is 132

you now subtract them

132 minus 6.28 which is 125.72

hope this helps

7 0
3 years ago
Read 2 more answers
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