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
Archy [21]
3 years ago
5

In a science experiment,the temperature decreased by 0.1 degree Celsius every 15 minutes. Find the unit rate

Mathematics
1 answer:
maksim [4K]3 years ago
8 0
0.1  decrease in 15 minutes 
unit rate is   0.1 / 15  = 0.00667
Temperature is decreasing by 0.00667 degrees Celsius per minute
You might be interested in
Polynomial and rational functions can be used to model a wide variety of phenomena of science, technology, and everyday life. Ch
Shalnov [3]

Answer:

  L = s^2/(30.25Cd)

Step-by-step explanation:

In accident investigation, the speed of a vehicle can be estimated using a polynomial function that relates speed (s) to the length of skid marks (L). The drag coefficient Cd will depend on the condition of the road surface and tires, but might be expected to be between 0.7 and 0.8.

If the skid marks end in a collision, the length of the marks that might have been made can be estimated using this formula, then that length added to the actual length of marks to estimate the original speed. The speed at the point of collision can be estimated by the damage caused, and/or the movement created.

In the above formula, length is in feet, and speed is in miles per hour.

8 0
3 years ago
On a typical long distance call you talk for 30 minutes. On a typical local call you talk for 10 minutes. Your phone company off
klio [65]

The number of long distance calls to be made can be obtained by linear programming

  • To minimize the phone bill, the number of long distance call to be made is none

Reason:

Maximum number of number of long distance calls = 15

Maximum number of local calls = 30

Number of minutes of calls to make each month = 240 minutes

Duration of each long distance call = 30 minutes

Duration of each local call = 10 minutes

Cost of long distance call = $0.08

Cost of local call = $0.03

Solution:

Let <em>X</em>, represent the number of long distance calls, and let <em>Y</em> represent the number local calls

The objective function is given as follows;

  • P = 0.08·(30)·X + 0.03·(10)·Y

P = 2.4·X + 0.3·Y

The constraints are;

X ≥ 0

Y ≥ 0

X ≤ 15

Y ≤ 30

30·X + 10·Y ≥ 240

Solving we have;

  • Y ≥ 24 - 3·X

The above inequality can be plotted with MS Excel

From the objective function, P = 2.4·X + 0.3·Y, the coefficient of the long

distance calls, <em>X</em> is larger than the coefficient of the local calls <em>Y</em>, therefore,

making the minimum possible number of long distance calls of 0, and 24

local calls will give a cost;

  • P = 2.4 × 0 + 0.3 × 24 = 7.2

Therefore, to minimize the phone bill, the number of long distance calls to

be made is <u>zero long distance calls</u>

Learn more about linear optimization here:

brainly.com/question/21491539

5 0
3 years ago
The expression 14p - 28 factored using the GCF is
Burka [1]

the factors and prime factorization of 14 and 28. (The biggest common factor number is the GCF number) So the greatest common factor 14 and 28 is 14.Jul

5 0
2 years ago
16x-15-9x=13 how do I solve for x
dangina [55]
Add two like terms: 16x+(-9x)=7x
Add 15 to both sides: 7x=28
Divide 7 on both sides: x=4
7 0
3 years ago
Add<br> 9a+8b-a+b and 10a-9b+6a-1b
Alina [70]

Answer:

8a + 9b and 16a - 10b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • The options are 3/4, 9/10, 1 1/9, and 4 1/2. If the file didn't load please say below.
    13·2 answers
  • Combine like terms to simplify the expression:<br> 1.3b+7.8−3.2b
    13·1 answer
  • Harris is building a deck around his pool. His contractor charges $525 for labor plus an additional $4.75 per square foot for ma
    15·1 answer
  • What is 0.0473 as a fraction?
    9·2 answers
  • What is the answer to 3x+5x+2
    15·2 answers
  • URGENTTTT! please help me with these four problems! having trouble I will give thanks and brainliest.
    6·2 answers
  • ILL MARK BRAINILEST IF YOU ANSWER!!!
    12·1 answer
  • What is the opposite operation of squaring a number?
    15·1 answer
  • If you know 20 divided by 5 = 4 how does that help you caculate 200 dived by 5
    15·1 answer
  • Halp meh plz. <br> Will give brainly.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!