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
Salsk061 [2.6K]
3 years ago
14

Find the solution set for the system of equations. 9x + 5y = 28 5x + 9y = 56

Mathematics
1 answer:
Jobisdone [24]3 years ago
6 0
First step find a common multiple, e.g. 45 and subtract
9x + 5y = 28   * 5
5x + 9y = 56   * 9

45x + 25y = 140
-(45x + 81y = 504)
-56y = -364
56y = 364
y = 6.5

Substitute into any equation
9x + 5(6.5) = 28
9x + 32.5 = 28
9x = -4.5
x = -0.5

x = -0.5   , y = 6.5

You might be interested in
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
fiasKO [112]

Answer:

Step-by-step explanation

:14-17

negative 26

4 0
3 years ago
Can yall please help lol
const2013 [10]

Answer:

1.) Triangle ABC is congruent to Triangle CDA because of the SAS theorem

2.) Triangle JHG is congruent to Triangle LKH because of the SSS theorem

Step-by-step explanation:

Alright. Let's start with the 1st figure. How do we prove that triangles ABC and CDA (they are named properly) are congruent? First, we can see that segments BC and AD have congruent markings, so that can help us. We also see a parallel marking for those segments as well, meaning that the diagonal AC is also a transversal for those parallel segments. That means we can say that angle CAD is congruent to angle ACB because of the alternate interior angles theorem. Then, the 2 triangles also share the side AC (reflexive property).

So, we have 2 congruent sides and 1 congruent angle for each triangle. And in the way they are listed, this makes the triangles congruent by the SAS theorem since the angle is adjacent to the 2 sides that are congruent.

The second figure is way easier. As you can clearly see by the congruent markings on the diagram, all the sides on one triangle are congruent to the other. So, since there are 3 sides congruent, we can say the triangles JHG and LKH are congruent by the SSS theorem.

4 0
2 years ago
Read 2 more answers
Solve the slope…. pls
Zielflug [23.3K]

Answer:

slope = 5/7

Step-by-step explanation:

Given the x-intercept: (-7, 0) and the y-intecept: (0, 5):

We can use the slope formula:

m = \frac{y2 - y1}{x2 - x1}

Let (x1, y1) = (-7, 0)

(x2, y2) = (0, 5)

Plug these values into the slope formula:

m = \frac{y2 - y1}{x2 - x1} = \frac{5 - 0}{0 - (-7)} = \frac{5}{7}

Therefore, the slope is 5/7

4 0
2 years ago
A mail order company charges 4.5% for shipping and handling. If the total order is 54.34 how much was the order total before shi
Andrews [41]

Answer:

$52

Step-by-step explanation:

Given that :

Amount charged for shipping and handling = 4.5%

Let cost of order = x

Total amount charged = 54.34

However,

total. Amount charged = (total cost + handling and shipping)

54.34 = x + 0.045x

54.34 = 1.045x

Order total before shipping = 54.34 / 1.045

Order total before shipping = 52

6 0
3 years ago
Write at least 5 arithmetic sequence and determine the common difference
Margarita [4]

Answer: 1,6,11,16,21,26

Step-by-step explanation:

The common difference is 5 (n+5)

7 0
2 years ago
Read 2 more answers
Other questions:
  • <img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B1%7D%7B2%7D%20x%20%3E%204" id="TexFormula1" title=" - \frac{1}{2} x &gt;
    13·1 answer
  • The measure of each exterior angle of a regular polygon is 72 degrees. how many sides does the polygon have?
    15·1 answer
  • F(x) = e^x/2<br><br> Find F(0).<br><br> 1.36<br> 1<br> 0
    10·2 answers
  • Help PLEASE im stucckkkk!!!
    9·1 answer
  • There are 213 fortunes, what is the largest about of times alice can eat at this restaurant without getting the same fortune 4 t
    13·1 answer
  • Is it possible for two numbers to have a difference of 8, and a sum of -6? If so, what are the two numbers?
    11·1 answer
  • The container of orange juice held 5 1/3 cups of juice. If a serving of orange juice is 7/8 of a cup of orange juice is to the
    6·1 answer
  • What is 5/4 simplified?
    9·1 answer
  • 3) Solve the equation for x.<br> 10(4x + 4) = 400<br> A) 2<br> B) 4<br> C) 9<br> D) 18
    8·2 answers
  • Fix my mistake one the one that says a golfer has 5 baskets
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!