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
Natali5045456 [20]
3 years ago
9

Which of these ordered pairs is the best estimate of the solution of the system y = 3x + 2 and y = -1/4 x + 1?

Mathematics
1 answer:
Lelu [443]3 years ago
6 0
If the solution exists, y=y....

3x+2=-x/4+1  make everything have a common denominator of 4...

(12x+8)/4=(-x+4)/4 now multiply both sides by 4

12x+8=4-x  add x to both sides

13x+8=4  subtract 8 from both sides

13x=-4  divide both sides by 13

x=-4/13

x≈-0.31  and the only pair in your choices having an x value close to that is:

(-0.3, 1.1)
You might be interested in
Factor z^2+7z-18<br> what is the factor expression?
kobusy [5.1K]

Answer:

z²+7z-18=0.

z²+9z-2z-18=0.

(z²+9z)-(2z-18)=0.

z(z+9)-2(z+9)=0.

(z-2)(z+9)=0.

(z-2)=0 or (z+9)=0.

z-2=0 or z+9=0.

z=2 or z=-9.

6 0
3 years ago
Twice the sum of a number and 5 is equal to three times the difference of the number and 3. Find the number.
Volgvan

let x be the number

2(x+5)= ±3(x-3)

2x+10= 3x-9 or 2x+10= -3x+9

x=19 or x=0.2

8 0
3 years ago
Which of the following terms can be combined in this expression? -3-x/5+6.2y+20.5x-3/8y
mojhsa [17]

Answer:

-\frac{x}{5} and 20.5x

-\frac{3}{8}y and 6.2y

Step-by-step explanation:

-3-x/5+6.2y+20.5x-3/8y

-3-\frac{x}{5}+6.2y+20.5x- \frac{3}{8} y

We are given an expression with 5 terms

The terms that has same variables with same exponent are like terms. WE combine only like terms. Constants are also like terms.

In the given expression , the fractions -\frac{x}{5} and 20.5x have same 'x' . so they are like terms. we can combine these terms.

the fractions -\frac{3}{8}y and 6.2y have same 'y' . so they are like terms. we can combine these terms.

8 0
3 years ago
Read 2 more answers
Which of these is not the same?
katovenus [111]

Answer:

Input

Step-by-step explanation:

Y is the output.

5 0
4 years ago
Read 2 more answers
Use complete sentences explain whether the following scenario will display biased results. A power plant measures its emissions
LekaFEV [45]
The location of the sensor that it is opposite the direction of the wind is reasonable and is needed to identify the plant's emissions. However, there might be a bias to that if it is located a mile from the plant's smokestack. The distance may be quite far. Considerations in identifying the location of the sensors such as changes in wind direction, wind speed, atmospheric stability, physical stack height, diameter, and other important factors are needed to have an accurate reading of the pollutants.
4 0
3 years ago
Other questions:
  • Apply the distributive property to factor out the greatest common factor. 25p+50q
    12·2 answers
  • A chemist examines 22 water samples for iron concentration. The mean iron concentration for the sample data is 0.409 cc/cubic me
    14·1 answer
  • Are these angles complementary, supplementary, or neither?
    7·1 answer
  • Evaluate xy + 9, if x = 7 and y = 9.
    8·1 answer
  • Nathan wants to use coordinate geometry to prove that the opposite sides of
    7·1 answer
  • in a candy store a,$12.00 jar is labeled "37% off what is the discount? what is the sale price of the jar of candy
    14·2 answers
  • 5) James and Andrew are considering adding some premium channels to their satellite package. The cost of
    6·1 answer
  • Trevor ran 2.3 miles on Monday and then ran some more on Tuesday, he had run a total of 5.55 miles for the week. How much did he
    8·2 answers
  • A pool measuring 8 meters by 28 meters is surrounded by a path of uniform​ width, as shown in the figure. If the area of the poo
    5·1 answer
  • ruth had a ribbon that was 9 yards long. she cut the ribbon into pieces that were 1/6 yard long. how many pieces of ribbon does
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!