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
Flauer [41]
3 years ago
9

At the beginning of a 10-hour experiment,a substance has an initial temperature of 19.7 degrees C. The substance is cooled at a

constant rate of 2.6 degrees C per hour. What is the temperature of the substance at the end of the experiment?
Justify your answer using words and math. Explain.
Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

-6.3

Step-by-step explanation:

2.6 * 10 (10 hours and 2.6 degrees) = 26

19.7 - 26 = -6.3



You might be interested in
Complete the factoring,<br> 5x^2 - 40x = 5x( ) <br><br> HELP ASAP PLS!
Aleksandr-060686 [28]

Answer:

5x(x-8)

Step-by-step explanation:

Factor 5x out of 5x^{2} -40x

8 0
3 years ago
Four times the sum of a number and 15 is at least 120. Find all possible solutions for x
zloy xaker [14]
First translate the English phrase "Four times the sum of a number and 15 is at least 120" into a mathematical inequality.

"Four times..." means we're multiplying something by 4.

"... the sum of a number and 15..." means we're adding an unknown and 15 and then multiplying the result by 4.

"... is at least 120" means when we substitute the unknown for a value, in order for that value to be in the solution set, it can only be less than or equal to 120.

So, the resulting inequality is 4(x + 15) ≤ 120.

Simplify the inequality.

4(x + 15) ≤ 120
4x + 60 ≤ 120 <-- Using the distributive property
4x ≤ 60 <-- Subtract both sides by 60
x ≤ 15 <-- Divide both sides by 4

Now that we have the inequality in a simplified form, we can easily see that in order to be in the solution set, the variable x can be no bigger than 15.

In interval notation it would look something like this:

[15, ∞)

In set builder notation it would look something like this:

{x | x ∈ R, x ≤ 15}

It is read as "the set of all x, such that x is a member of the real numbers and x is less than or equal to 15".
7 0
3 years ago
Asa trust grow where ships grapefruit in box of 10. One season , The grower shipped 20,400. Boxes of grapefruit. How many grapef
Scorpion4ik [409]
Divide 20,400 by 10 and you get 2,040
7 0
3 years ago
Lewis designs a game in which players work together to run a food truck business. During one game, the business loses $260. The
Ronch [10]

Answer:

They each lost 65 dollars.

Step-by-step explanation:

Well they lost 260 dollars in total. 260/4 is 65. That means they now have however much money they had before -65.

3 0
2 years ago
7th grade math - sales tax (please help)
arlik [135]

Answer: $6.67

Step-by-step explanation: Divide 18 by 2.7 which would be $6.67.

6 0
2 years ago
Other questions:
  • Please help me I’m desperate for help.........due tomorrow multiple choice
    8·1 answer
  • Which steps should you follow to write an equivalent ratio to find 120% of 700?
    15·2 answers
  • 4748.35 - 22.5x &gt; 4700
    6·1 answer
  • How do u add mixed numbers
    13·1 answer
  • The ratio of women to men in this university is 60:40, suppose the number of students in this class is 20, and i ask what number
    5·1 answer
  • Convert 2 3/7 to an improper fraction​
    14·1 answer
  • Which property was used to simplify the expression? <br> 3c+9+4c=3c+4c+9
    12·1 answer
  • Sorry bout that, THIS IS THE NEW ONE PLEASE ANSWER
    6·1 answer
  • Select The correct Description giving brainliest
    8·2 answers
  • How to find the GCF, How to find the factor out the GCF, and what are the solutions.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!