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
Pachacha [2.7K]
3 years ago
13

A weather station on the top of a mountain reports that the temperature is currently 0 degrees Celsius and has been falling at a

constant rate of -3 degrees Celsius per hour. What was the temperature 1 hour ago?
Mathematics
1 answer:
madam [21]3 years ago
5 0

Answer:

The temperature of the weather station was 3 degrees Celcius an hour earlier.

Step-by-step explanation:

We can say that the weather an hour ago should be represented with the variable - x.

From the problem, we know that the temperature of the station falls at a rate of -3 degrees per hour. This means that for every hour, the temperature of the place will go down by about 3 degrees Celsius.

If the temperature of the weather station is currently 0 degrees Celsius, to find its temperature an hour earlier, it means that we will need to add 3 degrees to its current temperature, because that is what must have lost in one hour.

i.e x = 0 + 3 = 3 degrees Celcius.

This means that the temperature of the weather station was 3 degrees Celcius an hour earlier.

You might be interested in
There were 350 members in the high school marching band last year. This year, the number of marching band members increased by 5
Rudiy27

Answer:

The percentage of the number of marching band members increased by 16% this year.

Step-by-step explanation:

\frac{56}{350} x 100% = 16%

56 is 16% of 350

3 0
3 years ago
Read 2 more answers
What’s the slope for this graphed?<br> A.1/2<br> B.-2<br> C.2<br> D.-3
Scorpion4ik [409]

Answer:

the answer is just 2

Step-by-step explanation:

start at the -3 and move right 3 and up 6 this is a inclined line so the answer will be positive the fraction put the numbers into a rise over run fraction which will be 6/3 which will reduce to 2/1 which is 2.

6 0
3 years ago
Find the number which when divided by 4 and increased by 12 is the same as when it is divided by 3 and decreased by 5
MatroZZZ [7]

Step-by-step explanation:

Let's make the number we're finding to be a. So, it says that it will be divided by 4 and then added by 12 if we want this in algebraic expression it will be \frac{a}{4} +12\\. It's also telling us that that expression is the same thing as our number divided by 3 and subtracted by 5. If we want an expression out of it it well be \frac{a}{3} -5\\. Since they are the same, we have the equation below.

\frac{a}{4} +12 = \frac{a}{3} -5\\

All we have to do now is to find a.

\frac{a}{4} +12 = \frac{a}{3} -5 \\ \frac{a +48}{4} = \frac{a -15}{3} \\ (3)(a +48) = (a - 15)(4) \\ 3a +144 = 4a -60 \\ (60 -3a) + 3a +144 = 4a -60 +(60 -3a) \\ a = 204

<h3>Answer:</h3>

Our number must be 204. I think

5 0
3 years ago
Help please! the question is in the picture below for reference when answering! thank you so much!
Reil [10]

Answer:

Neither perpendicular or parallel

Step-by-step explanation:

The y-intercept would not be the same, and the slope would be different. That means that line wont be parallel, or perpendicular.

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

3 0
2 years ago
Need some help with the answer to the question
kicyunya [14]

Answer:

(- 4, 27 )

Step-by-step explanation:

Equate the right sides of both equations, that is

x² - 2x + 3 = - 2x + 19 ← subtract - 2x + 19 from both sides

x² - 16 = 0 ← in standard form

(x - 4)(x + 4) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 4 = 0 ⇒ x = 4

x + 4 = 0 ⇒ x = - 4

Substitute these values into f(x) = - 2x + 19

f(4) = - 2(4) + 19 = - 8 + 19 = 11 ⇒ (4, 11 )

f(- 4) = - 2(- 4) + 19 = 8 + 19 = 27 ⇒ (- 4, 27 )

8 0
2 years ago
Other questions:
  • The students at Isaac's school voted between a bear and a lion as the new school mascot. 47 students voted for the bear and 893
    8·1 answer
  • The sum of 1/6,2/3 and 1/4 is
    7·2 answers
  • the price p of a clubs membership is $30 foran enrollment fee and $12 per week w tobe a member .Write a function
    7·1 answer
  • What is not equivalent to 65%
    14·2 answers
  • You visit your local bank to see how long it will take for $1,200 to amount to $2,100 at a simple interest rate of 7%. The time
    11·1 answer
  • A composite figure is formed by combining a square and a triangle. Its total area is 57.5 ft2. The area of the triangle is 32.5
    13·2 answers
  • 6. A graph with a<br> slope decreases from left to right.
    13·2 answers
  • Dawdawdadaw pls help me
    13·1 answer
  • Ron earned $95 in interest for leaving $1,000 in an account for 3 years. What was his rate? Round to the nearest hundredth (2 de
    8·1 answer
  • Flying against the wind, an airplane travels 2520 kilometers in 4 hours. Flying with the wind, the same plane travels 9450 kilom
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!