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
grin007 [14]
3 years ago
12

3x+2y=10 12x+5y=25 Solve by substitution or elimination

Mathematics
1 answer:
zaharov [31]3 years ago
5 0
3x + 2y = 10 ....multiply by -4
12x + 5y = 25
-------------------
-12x - 8y = -40 (result of multiplying by -4)
12x + 5y = 25
------------------add
-3y = - 15
y = -15/-3
y = 5

3x + 2y = 10
3x + 2(5) = 10
3x + 10 = 10
3x = 10 - 10
3x = 0
x = 0

solution is (0,5)
You might be interested in
From first principles, find the indicated derivatives​
LenaWriter [7]

By definition of the derivative,

\displaystyle\frac{dr}{ds} = \lim_{h\to0} \frac{\left(\frac{(s + h)^3}2 + 1\right) - \left(\frac{s^3}2 + 1\right)}{h}

\displaystyle\frac{dr}{ds} = \lim_{h\to0} \frac{\left(\frac{s^3+3s^2h+3sh^2+h^3}2 + 1\right) - \left(\frac{s^3}2 + 1\right)}{h}

\displaystyle\frac{dr}{ds} = \lim_{h\to0} \frac{\frac{3s^2h+3sh^2+h^3}2}{h}

\displaystyle\frac{dr}{ds} = \lim_{h\to0} \frac12 \frac{3s^2h+3sh^2+h^3}{h}

\displaystyle\frac{dr}{ds} = \lim_{h\to0} \frac12 (3s^2+3sh+h^2)

\displaystyle\frac{dr}{ds} = \frac{3s^2}2

6 0
2 years ago
20 points and will mark brainliest
mixer [17]

Answer:

a \leqslant x \leqslant e

Step-by-step explanation:

The domain is simply the farthest left ppint to the farthest right point on the graph.

4 0
3 years ago
Can someone help me with this
Daniel [21]

Considering the given graph of the function, we have that:

  • Function Notation: f(1) = -3.
  • Ordered pair: (1,-3).
  • Verbal statement: If x is equal to -1, then the value of f(x) is equal to -3.
<h3 /><h3>How to find the numeric value of a function looking at it's graph?</h3>

To find the numeric value of the function, we get a value of x(horizontal axis), and then look at the corresponding value y(vertical axis), then y = f(x).

In the graph of this function, we have that when x = 1, y = -3, hence:

  • Function Notation: f(1) = -3.
  • Ordered pair: (1,-3).
  • Verbal statement: If x is equal to -1, then the value of f(x) is equal to -3.

More can be learned about functions at brainly.com/question/25537936

#SPJ1

7 0
1 year ago
I WILL GIVE YOU BRAINLIEST HELP ANSWER ME WITH THE FULL EXPLANATION
Sati [7]

Answer: 125:700

Step-by-step explanation:

This is the ratio

7 0
3 years ago
Can someone help me asap??
Zepler [3.9K]
You need help on what ?
8 0
3 years ago
Read 2 more answers
Other questions:
  • A geologist had two rocks on a scale that weighed 2 1/2 lbs together. Rock A was 1/7 of the total weight. How much did Rock A we
    10·1 answer
  • BRAINLIEST ANSWER!! The product of 3, and a number increased by seven, is -36. Translate the equation, then solve.
    14·1 answer
  • What times 5/6 equals 10/3
    11·2 answers
  • What is a quadratic function?
    9·1 answer
  • Which algebraic equation models the English sentence, a number subtracted from 8 is equal to 4?
    8·2 answers
  • I need help I’m give the most points if u help
    13·2 answers
  • 6) A cone has a slant height of 50 inches and a diameter of 60 inches. What is the volume of the cone?
    7·2 answers
  • If y varies directly with x and y=4 and y=12. Find the direct variation equation (find k and put into an equation).
    13·1 answer
  • Hi my question is what is 72x13​
    15·2 answers
  • Mr. Quick bought a new computer system. The regular price was $1,580, but he got a 15% discount. How much did he actually pay?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!