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
MAXImum [283]
2 years ago
9

A system of linear equations is...

Mathematics
1 answer:
IgorLugansk [536]2 years ago
3 0

Answer:

C. A set of 2 or more

Step-by-step explanation:

You might be interested in
Cameron buys 2.45 pounds of apples and 1.65 pounds of pears. Apples and pears each cost c dollars per pound. If the total cost a
Leto [7]

Answer:

2.45c + 1.65c = 4.12 + 0.75

Step-by-step explanation:

To write an equation to find the value for c, we need to declare what c is first.

c = price of fruit

2.45c + 1.65c = 4.12 + 0.75

Now we multiplied c to 2.45 and 1.65 and added them together, because whatever the value of c is will give us the equivalence of the sum of 4.12 + 0.75.

Now to check if the equation is right, let's solve for c.

2.45c + 1.65c = 4.12 + 0.75

4.1c = 4.87

Now to get the value of c, we divide both sides of the equation by 4.1.

\dfrac{4.1c}{4.1}=\dfrac{4.87}{4.1}

c = 1.19

Now let's substitute the value of c in the equation to see if we got it right.

2.45(1.19) + 1.65(1.19) = 4.12 + 0.75

2.92 + 1.96 = 4.87

4.87 = 4.87

Therefore concluding that the value of c is 1.19.

7 0
3 years ago
What fractional part of the day do you spend sleeping if you sleep 8 hours?
fomenos

You sleep 1/3 of the day.

5 0
3 years ago
An environmental science teacher at a high school with a large population of students wanted to estimate the proportion of stude
AnnZ [28]

Answer:

60 students

Step-by-step explanation:

The confidence interval of a proportion is given by:

p\pm z*\sqrt{\frac{p*(1-p)}{n} }

Where 'p' is the proportion of students who responded 'yes', 'z' is the z-score for a 95% confidence interval (which is known to be 1.960), and 'n' is the number of students in the sample.

If the confidence interval is from 0.584 to 0.816, then:

p=\frac{0.584+0.816}{2}=0.7 \\0.816-0.584=2*(1.96*\sqrt{\frac{p*(1-p)}{n}}) \\0.116=1.96*\sqrt{\frac{0.7*(1-0.7)}{n}}\\n=16.8966^2*(0.7*0.3)\\n=60\ students

60 students were in the sample.

8 0
3 years ago
In the diagram, the measure of angle 3 is (23x)°, and the measure of angle 4 is (7x)°.
Sophie [7]
Angles three and four are a linear pair, meaning that they they form a line. When two angles make a line, the measures add up to 180°. Adding the two values together, we see that 3x+27x=180. Simplifying and solving for x, we get 30x=180 ⇒ x=6.

The question, however, is asking for the measure of angle 4. Thus, we plug x=6 into 7x to get 6(7)=42.

Hope this helped!
3 0
3 years ago
Read 2 more answers
Identify the values of a, b, and c.
Vikki [24]

Answer:

  • a=4
  • b=12
  • c=9
  • You have correctly selected the standard form.

Step-by-step explanation:

  (2x +3)² = (2x)² + 2(2x)(3) +(3)²

  = 4x² +12x +9

Comparing that to ax² +bx +c, we can identify ...

  • a = 4
  • b = 12
  • c = 9
6 0
3 years ago
Other questions:
  • Arturo has a log that is 4 yards long. he cuts the log into pieces that are 1/3 yard long . how many pieces will Arturo have?
    13·1 answer
  • The Appalachian Trail is about 2175 miles long.If a hiker averages 12 miles each day, how long will it take her to hike the leng
    14·2 answers
  • mark just bought a new vacuum cleaner for $220. he used a 30% off coupon and then paid 5.1% sales tax. what was his final cost?
    8·1 answer
  • Which relationship would most likely have a positive correlation?
    13·1 answer
  • Compute the total cost per year of the following pair of expenses. Then complete the​ sentence: On an annual​ basis, the first s
    6·1 answer
  • Suppose that you decide to buy a car for ​$62000​, including taxes and license fees. You saved $ 11000 for a down payment. The d
    8·1 answer
  • Write a polynomial function in factored form with zeros at −2, 5, and 6.
    15·1 answer
  • If you could help I would really appreciate it, but if not that’s fine. Thank you.
    5·1 answer
  • Aria is buying snacks for a party. She will buy one pizza for $20 and some garlic rolls for $2 each. Write an expression to repr
    7·1 answer
  • I rlly need help with thins question asap​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!