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
zysi [14]
3 years ago
12

What is the solution of the system of equations? y = x - 10 y = 2x + 5

Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

<h2>x = -15 and y = -25 ⇒ (-15, -25)</h2>

Step-by-step explanation:

y=x-10\qquad(1)\\\\y=2x+5\qquad(2)\\\\\text{substitute (2) to (1):}\\\\2x+5=x-10\qquad\text{subtract 5 from both sides}\\\\2x=x-15\qquad\text{subtract x from both sides}\\\\x=-15\\\\\text{Put the value of x to (1):}\\\\y=-15-10\\\\y=-25

You might be interested in
Work out the percentage change when a price of £10 is increased to £12.
Anastaziya [24]

Answer:

20%

Step-by-step explanation:

Use the percent change formula: difference = % * original cost

12 - 10 = 2

The difference is 2 and the original cost is 10. Now, we have the equation

2 = % * 10. We don’t know the percentage right? So now we have to find the percentage. To do this, you will have to do 2 divided by 10, which is 0.20. Lastly, we have to turn 0.20 into a percentage by multiplying it by 100, leaving you with 20%. So therefore, 20% is the percent increase. Hope this helps!

3 0
2 years ago
If f (x)=3x, g(x)=x-3, and h(x)= square root of x, find (fogoh)(25)
Lelu [443]
(f o g o h)(x) = f { g [ h(x) ] }

Which means: apply first function h, then apply function g to the result, and finally apply  function f to the new result.

h(25) = √25 = 5

g(5) = 5  - 3 = 2

f(2) = 3(2) = 6.

Answer: 6
8 0
3 years ago
Helpp picture about will mark
dezoksy [38]

Answer:

36

Step-by-step explanation:

3*2=6

6^2 is 36

8 0
3 years ago
write an expression that equals (x-13). It must have at leat two sets of parentheses and one minus sogn.Verify that it is equal
IRISSAK [1]

You can perform all kind of operation that are one the inverse of the other, so that the value won't change. For example, you can multiply and divide by 2:

\dfrac{1}{2}(2(x-13))

Or add and subtract 5:

\left(\dfrac{1}{2}(2(x-13))+5\right)-5

4 0
3 years ago
What does this &lt; &gt; = mean
Ber [7]
Less than greater than equal Too
8 0
4 years ago
Read 2 more answers
Other questions:
  • An athlete eats 0.4 kg of protein per week while training. How much protein will she eat during 7 weeks of training? write the a
    9·1 answer
  • How much money will you have if you started with $1250 and put it in an account that earned 6.7% every year for 14 years?
    12·1 answer
  • What is the value of x in the equation?
    13·2 answers
  • On Friday, 20 dogs attended doggy daycare. On Saturday, 26 dogs attended. What is the percent of change?
    5·1 answer
  • Ned help please ASAP!!!!!
    14·1 answer
  • Analyze the diagram below and complete the instructions that follow.
    11·1 answer
  • 2^2 times 2^3<br> a.2^4<br> b.2^5<br> c.2^6<br> d.4^6
    13·2 answers
  • Somebody please help!!!
    13·1 answer
  • "mon ame ne suivit pas la sienne"<br><br><br>quelle figure de style represente cette phrase?​
    5·1 answer
  • (-2, 1), (-1, 4), (0, 4), (1, 6), (2, 7) <br><br> find domain and range
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!