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
SVEN [57.7K]
3 years ago
12

Solving simultaneous equations by algebraic methods 3a+4x=29 2a-3x=-9

Mathematics
1 answer:
kogti [31]3 years ago
4 0
<span>3a+4x=29 (1st)
2a-3x=-9 (2nd)

multiply (1st) by 3 and (2nd) by 4

</span>9a + 12x = 87 (1st)
8a - 12x = -36 (2nd)
---------------------add
17a = 51
   a = 3

<span>2a-3x=-9
</span><span>2(3)-3x=-9
6 - 3x = -9
-3x = -15
   x = 5

answer
x = 5 and a = 3</span>
You might be interested in
PLEASE HELP! BRAINIEST GETS 50 POINTS!
levacccp [35]
Hey there, 

For the first one, your answer will be C. The height of the plant increases by 2 mm for every hour of sunlight it receives. For the second one, It is B.<span>There is a strong negative relationship between x and y. And the last one is B. </span><span> It is greater for Group B than Group A.

I hope I helped :)</span>
7 0
3 years ago
Read 2 more answers
Given that RT ≅ WX, which statement must be true?
wel
The length of TR<span> ≅ The length of XW</span>
4 0
3 years ago
2x(x -2)+16=2(2×+9) solve equation
nata0808 [166]

Answer:

x

=

1

+

√

11

,

1

−

√

11

Decimal Form:

x

=

4.31662479

…

,

−

2.31662479

…

Step-by-step explanation:

4 0
4 years ago
2.) Bill sells cleaning products on commission. He earns 40% commission on his sales. If
valentina_108 [34]

Answer:

Step-by-step explanation:

what you have to do if figure out what forty percent is if you know what fifty is then u know that 40 is half minus ten so start buy dividing that by 2 then subtract ten and there's your answer

3 0
3 years ago
Which integer is closest to 3V62?
Phoenix [80]

Answer:

\sqrt[3]{62} is closest to 4.

Step-by-step explanation:

Our approach consist in comparing the given cubic root with respect to other two cubic roots consecutive to each other and whose result is an integer. The following condition must be satisfied:

n < \sqrt[3]{62} < n+1

n^{3} < 62 < (n+1)^{3}

If n = 3, then the simultaneous inequation is observed:

3^{3}

27 < 62 < 64

Since 62 is closer to the upper bound, then \sqrt[3]{62} is closest to 4.

3 0
3 years ago
Other questions:
  • Assume that each bag contains 5 balls. Bag a contains 2 red and 3 white, while bag b contains 1 red, 1 white, and 3 blue. You ra
    6·1 answer
  • What's 35 ÷ 3 I just get a really big number
    5·1 answer
  • In a parking lot, there are 21 blue cars and 75 cars that are other colors. What is the ratio of blue cars to cars that are not
    15·2 answers
  • Which of the following expressions is equivalent to 3m(m - 2) - (m^2 + 1)
    14·1 answer
  • 14k²+49k+21 factorise<br>​
    7·1 answer
  • 66/9-7*532<br><br> Am I cute and I do feel really insecure about myself toooo....
    14·1 answer
  • What types of organisms are prokaryotic?
    9·1 answer
  • Triangle ABC is formed by two parallel lines and two other intersecting lines. Find the measure of each angle A, B, and of the t
    7·1 answer
  • Based on what we established about the classification of x and using the closure of integers, what does the equation tell you ab
    14·2 answers
  • What is the equation of the line that passes through the point (-2,-1) and has a slope of 3/2?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!