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
Nostrana [21]
3 years ago
9

Solve the given system of equations.

Mathematics
1 answer:
Goryan [66]3 years ago
8 0
The given equations are:
1) 2y = -x + 9 
⇒ x = 9-2y

2) 3x - 6y = -15
⇒3x = 6y - 15
x = 2y - 5

Equating the values of x, we get:

9 - 2y = 2y - 5
9 + 5 = 4y
14 = 4y
y = 3.5

Using this value of y in equation 1 we get:

x = 9 - 2(3.5) = 2

So, the solution set is (2, 3.5)

You might be interested in
Four balls are taken to the top of a building. ball 1 is dropped (zero initial velocity). ball 2 is thrown straight up with a ve
tia_tia [17]
The one which has the greatest initial DOWNWARD velocity which is ball 4
4 0
3 years ago
Richard s kitchen floor measures 22 ft by 16ft. He plans on laying title down and each tile piece measures 16 inches by 16 inche
olya-2409 [2.1K]
We calculate the floor area of the kitchen:
 A = (22) * (16)
 A = 352 feet ^ 2
 We consider the following conversion:
 1 foot = 12 inches.
 Applying the conversion we have:
 A = 352 * (12/1) ^ 2
 A = 50688 in ^ 2
 We calculate the area of each tile:
 A = (16) * (16)
 A = 256 in ^ 2
 Then, the number of tiles is given by:
 N = (50688) / (256)
 N = 198
 Answer:
 He
 needs to buy 198 tiles
3 0
3 years ago
How many times is 0.7m in 28m
astra-53 [7]
Solve:-

28 ÷ 0.7 = 40
28m ÷ 0.7m = 40

0.7 goes 40 times in 28m.
4 0
3 years ago
Read 2 more answers
5. In your part-lime job selling kitchen knives, you have two different sets available.
Korvikt [17]

Answer: 8.75

Step-by-step explanation:

575 divided by 3 equals 175. Divided by 20 equals 8.75. Probably rounds up to 9 but i dont know.

6 0
2 years ago
1 yogurt cost 55p how many can be bought for £5
Alenkinab [10]
If one pound of yogurt cost 55 (cents?) then, Two yogurts cost $1.10
Three yogurts cost $1.65
Four yogurts cost $2.20
Five yogurts cost $2.75
Six yogurts cost $3.30
7 0
3 years ago
Other questions:
  • What is the answer to this?
    12·1 answer
  • Simplify the expression 4x+3(5y−x)
    6·2 answers
  • A rubber of length 89m is cut into 3 equal pieces. What is the length of each piece.
    8·1 answer
  • H(n) = n + 3<br> g(n) = 3n<br> Find (h + g)(n)
    11·1 answer
  • Steve makes the tree diagram shown to find the possible outcomes of tossing a penny, a nickel, and a dime. What is the probabili
    10·1 answer
  • Which expression is equivalent to 9m – 36?
    11·1 answer
  • A man buys a car for rs 80000 and spends rs 20000 more for repairing He sells it for rs 125000.find his gain percent
    7·2 answers
  • Which point is located at the coordinates (-1.25, 1) on the grid below?
    12·1 answer
  • 3. Plot the points and then answer the questions:
    6·1 answer
  • Trevor recorded the amount of material collected for recycling at his school for 5
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!