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
mixas84 [53]
3 years ago
15

Use elimination to find the solution to the system of equations.

Mathematics
1 answer:
Stolb23 [73]3 years ago
8 0
Multiply the first equation by 2 to give

10x + 2y = 20

2x - 2y = 4   Adding to elininate y

12 x = 24
x = 2

Plug x = 2 into 2x - 2y = 4

4 - 2y = 4
y = 0

so the answer is 

(2,0)
You might be interested in
I need help on this one 2 pls !?
mestny [16]
the area of the first shape is 4 times 12 which is 48 and the area of the second shape is 2 times 10 which is 20
48+20= 68 mi2
3 0
3 years ago
Read 2 more answers
How to find (c,d,e)<br>Please do a step by step working.Thank you.
Natasha2012 [34]
(a)
The inverse is when you swap the variables and solve for y.
g(t) = 2t - 1 (Note: g(t) represents y)
rewrite as: y = 2t - 1
swap the variables: t = 2y - 1
solve for y: t + 1 = 2y
                   \frac{t + 1}{2} = y
Answer for (a): g^{-1}(t) =  \frac{t + 1}{2}

(b)
Same steps as part (a) above:
h(t) = 4t + 3
rewrite as: y = 4t + 3
swap the variables: t = 4y + 3
solve for y: y =\frac{t - 3}{4}

Answer for (b): h^{-1}(t) = \frac{t - 3}{4}

(c)
g^{-1} ( h^{-1}(t)) =  g^{-1} (\frac{t - 3}{4})
replace all t's in the g^{-1}(t) equation with \frac{t - 3}{4}
 g^{-1} (\frac{t - 3}{4}) = \frac{ \frac{t-3}{4} + 1}{2}
= \frac{ \frac{t-3}{4} +  \frac{4}{4}}{2} = \frac{ \frac{t - 3 + 4}{4}}{2} = \frac{ \frac{t + 1}{4}}{2} =  \frac{t + 1}{8}
Answer for (c): g^{-1} ( h^{-1}(t)) = \frac{t + 1}{8}

 (d)
h(g(t)) = h(2t - 1) = 4(2t - 1) + 3 = 8t - 4 + 3 = 8t - 1
Answer for (d): h(g(t)) = 8t - 1

(e)
h(g(t)) = 8t - 1
   y = 8 t - 1
   t = 8y - 1
  t + 1 = 8y
\frac{t + 1}{8} = y
Answer for (e): inverse of h(g(t)) = \frac{t + 1}{8}
 
























8 0
3 years ago
Graph the image of F(-8, 10) after a rotation 180° counterclockwise around the origin.
pychu [463]

Answer:

F' is at (8, -10)

Step-by-step explanation:

clockwise or counter-clockwise do not matter when the rotation is 180°

6 0
2 years ago
Expand the following: 6(x-4y)
maw [93]

Answer:

to expand, use the distributive property. therefore, we get:

6x - 24y

8 0
3 years ago
Read 2 more answers
Is the set closed or not closed under operation? Negative Integers under multiplication
Nutka1998 [239]

The set is not closed

Example

-4 * -2 = 8

8 is not a negative integer

8 0
3 years ago
Other questions:
  • Write this number in two ways in expanded form 204.032
    10·2 answers
  • Which relation is a function?
    11·2 answers
  • Olivia is on a road trip with her family. During a three- hour stretch,they traveled 183 miles.How fast were they driving in mil
    15·1 answer
  • Help Please.. qUESTION at file.
    12·1 answer
  • Pls help I forgot how this works
    6·1 answer
  • George made a conical hat to match his costume for a party. The hat has a slant height of 14 inches and a base circumference of
    13·1 answer
  • Please help will give brainliest!
    9·2 answers
  • Graph the function.<br> g(x)=1/3(x-6)^2+1
    8·1 answer
  • D)
    14·1 answer
  • Find the area of the kite please. image included!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!