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
12345 [234]
3 years ago
13

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

Mathematics
1 answer:
masha68 [24]3 years ago
5 0
9x + 5y = 28 . . . . . (1)
5x + 9y = 56 . . . . . (2)

(1) x 5 => 45x + 25y = 140 . . . . . (3)
(2) x 9 => 45x + 81y = 504 . . . . . (4)

(3) - (4) => --56y = -364 => y = 6.5

From (1), 9x + 5(6.5) = 28 => 9x = 28 - 32.5 = -4.5 => x = -4.5/9 = -0.5
You might be interested in
Javonie started a dog walking business over the summer. He walked 8 dogs and earned $160 in July.
Damm [24]

Answer:

a) $340

b) $20

Step-by-step explanation:

a) in the summer (July and August) he earned 160 + 180 = $340

b) in July he earned 160 ÷ 8 = $ 20

7 0
3 years ago
Giving BRAINLIEST for correct awnser! Factor the expression below.
melomori [17]

Answer:

C. 6a + 5b

Step-by-step explanation:

36a^2-25b^2

Rewriting as

(6a)^2 - (5b)^2

We know this is the difference of squares

(x^2 -y^2) = (x-y)(x+y)

(6a - 5b) (6a+5b)

6 0
3 years ago
Read 2 more answers
Jane's family divided up their garden so that 3/4 of the garden will have vegetables. Jane and her sister will plant 3/4 of the
vodka [1.7K]

9/16 of the family garden

We can use an equation to solve this:

(3/4) * (3/4) = (9/16)

8 0
3 years ago
2. Determine whether each event is impossible,
Gre4nikov [31]

Answer:

likely is the awnser

Step-by-step explanation:

likely is the awnser

3 0
3 years ago
a car travels 30 1/5 miles in 2/5 of an a hour. what if the average speed, in miles, per hour of the car?
alekssr [168]

Answer:

Average speed = 30.2 miles / .4 hours =

75.5 mph

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • The table below shows selected points from a function.
    9·1 answer
  • What does 0.001085 equal to g?
    8·1 answer
  • 37 is ____ % of 148; 148 is ____ % of 37 fill in the blanks
    12·1 answer
  • The average distance of all data values from the mean of the data is called the
    9·1 answer
  • Help me with this problem?
    15·1 answer
  • Find the distance between the two points in simplest radical form.<br> (1,5) and (-5,8)
    13·1 answer
  • Please Help!! What is the next step in the proof? Choose the most logical approach.
    13·1 answer
  • Enter three different expressions that are equivalent to, but not exactly the same as 1/4 + 5/4​
    9·1 answer
  • Use pemdas (23 + 11) / 2 - 14 write 3 steps
    13·2 answers
  • Find the circumference r=14m
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!