answer.
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
kozerog [31]
2 years ago
7

9x-2y=11 5x-2y=15 what is the solution to the above system of equations ASAP

Mathematics
2 answers:
natali 33 [55]2 years ago
8 0

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

Mice21 [21]2 years ago
7 0
Multiply the second row by -1

9x-2y=11
-5x+2y=-15

4x=-4
X=-1

9(-1)-2y=11

-9-2y=1
Add 9 to both sides
-2y=10
Y=-5

(-1,-5)
You might be interested in
explain the relationship between multiplying and dividing by 10 100 1000 and moving decimals point to the right or to the left
ch4aika [34]

So basically a decimal is moved based on how many zeros are in the dividing number

Ex. 51,000/100

because there are 2 zeros in the number one hundred, the decimal in 51,000 gets moved 2 places to the left

So it goes from 51,000 to 510

Ex. 16 * 1000

There are three zeros in the number 1000. This means three zeros will be added onto the number 16

So the answer would be 16,000

Hope this helps!

6 0
2 years ago
A local university wanted to understand what students prefer to eat during finals. They asked 1,000 students, "Do you prefer chi
kompoz [17]
Given that the person is female, the universe is reduced to 219 + 192 + 119 = 530 people.

The number of women that prefer pizza is 119.

Then the probability is 119/530 *100 = 22.5%
3 0
2 years ago
Read 2 more answers
What is the surface area of this right rectangular prism?<br><br> Enter your answer in the box.
antoniya [11.8K]

Answer:

The surface area is 22m

4 0
2 years ago
25. To produce the graph of the function y=0.5cos(0.5x), what transformations should be applied to the graph of the parent funct
soldi70 [24.7K]

Answer:

C. A horizontal stretch to produce a period of 2\pi and a vertical compression.

Step-by-step explanation:

We are given the parent function as y= \cot x

It is given that, transformations are applied to the parent function in order to obtain the function y=0.5\cot (0.5x) i.e. y=\frac{1}{2}\cot (\frac{x}{2})

That is, we see that,

The parent function y= \cot x is stretched horizontally by the factor of \frac{1}{2} which gives the function y=\cot (\frac{x}{2}).

Further, the function is compressed vertically by the factor of \frac{1}{2} which gives the function y=\frac{1}{2}\cot (\frac{x}{2}).

Now, we know,

If a function f(x) has period P, then the function cf(bx) will have period \frac{P}{|b|}.

Since, the period of y= \cot x is \pi, so the period of y=\frac{1}{2}\cot (\frac{x}{2}) is \frac{\pi}{1/2} = 2\pi

Hence, we get option C is correct.

3 0
2 years ago
The results of a survey show that the percent of adults in a certain town who want to change the name of the town is in the inte
Paha777 [63]
A) about 39.5%
b) +/ - 1.5%
c) I'd say no. It is very unlikely because less than the majority wanted it changed
7 0
2 years ago
Read 2 more answers
Other questions:
  • To convert a measurement, Pete must move the decimal point to the left 4 places. This a shortcut for the operation. which operat
    9·2 answers
  • At Fairview middle school 75 band members need to raise a total for a trip of $8,250 for a trip so far they have raised $3,120 h
    7·1 answer
  • Four friends are playing a game. They randomly choose a handful of marbles from a bag. The player with the highest ratio of blue
    6·2 answers
  • Rhombus LMNO is shown with its diagonals. The length of LN is 28 centimeters. What is the length of LP? 7 cm 9 cm 14 cm 21 cm
    7·2 answers
  • A charity organization is having a fundraiser.
    5·1 answer
  • WILL GIVE BRAINLIEST AND 30 POINTS!
    5·2 answers
  • Background information: This is an excerpt from an investigative report commissioned by the United Nations.
    9·2 answers
  • A circular room has a floor of diameter 590cm. Estimate the 92.2 perimeter of the room in metres​
    13·1 answer
  • Eric’s kite spool had 100 yards of string. At first, he let out 50 feet of string.Then, the kite rose for another 16 yards. How
    14·1 answer
  • (Please this is URGENT!) On a computer screen, Jennifer just created a triangular design of a banner with vertices at A(-4,3), B
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!