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
Phoenix [80]
2 years ago
15

You bought some new fish and need the tank ready. You fill the tank with water and start running the filter system.You check the

temperature of the water after 2 hours and notice the water is 78 degrees Fahrenheit. You need the temperature to be at 72 degrees Fahrenheit. after three additional hours and the water temperature is at so, you add the fish. What was the temperature when you first filled the tank?
Mathematics
1 answer:
gizmo_the_mogwai [7]2 years ago
5 0

Answer:

82 degrees

Step-by-step explanation:

It took 3 hours for it to go from 78 to 72.

Which is a rate of -2 degrees per hour

We want to know what the temperature was two hours before it was 78 degrees so we'd do 78 - (-2) which is 82

You might be interested in
Hmm..... Can someone help me please ? Thanks!
kolezko [41]
I believe it is A. Hope this helps.
6 0
2 years ago
Read 2 more answers
If a triangle has a side length of 10 <br> 12 and 15 what type of triangle is it
Alex73 [517]
Acute. Step-by-step explanation: Using the Triangle Inequality Theorem you know that the sum of the lengths of two sides of a triangle are greater than the length of the third side.
8 0
2 years ago
Solve the following system of equations graphically on the set of axes below.
eimsori [14]

Answer:

  (x, y) = (3, 5)

Step-by-step explanation:

To solve these equations graphically, you plot each one, then identify the coordinates of the point of intersection.

The first equation can be graphed using the y-intercept of -1 and the slope of 2.

The second equation has a y-intercept of 18/3 = 6, and a slope of -1/3. The x-intercept of 18 is off the chart, so the slope and intercept are a good way to plot this line, too.

__

The slope is the "rise" divided by the "run". A slope of 2 means the line goes up 2 units for each unit to the right. A slope of -1/3 means the line goes down 1 unit for each 3 units to the right.

The solution is (x, y) = (3, 5).

8 0
2 years ago
Solve.<br> X-9 = 12<br> .....
Lelechka [254]

Answer:

x=21

Step-by-step explanation:

x=9+12 x=21

5 0
2 years ago
Read 2 more answers
What is a real world example of rate of change
Tatiana [17]

Answer:

Step-by-step explanation:

A population of rats increasing by 40 rats per week. A car traveling 68 miles per hour  

distance traveled changes by 68 miles each hour as time passes)

3 0
3 years ago
Other questions:
  • Ellie wants to change her password which is ELLIE9 but with same letters and number. In how
    12·1 answer
  • The solution to -35 x = -105 is -3. TrueFalse
    5·1 answer
  • A company builds computers. It costs $6,700 to build 10 computers and $12,200 to build 20 computers. Which equation models the c
    6·1 answer
  • On a coordinate plane, point A is at (3, 3) and point B is at (negative 3, 3). Point B is the image of point A when A is rotated
    10·1 answer
  • Solve the equation.<br> 3x = 2x + 20<br> X =<br> Ty!!
    7·2 answers
  • Please help me idk this
    13·1 answer
  • Is the answer to -8/-8 positive or negative?
    14·1 answer
  • Question 11 ) Given the following histogram, which term can be used to describe the shape of the data?
    6·1 answer
  • Please help I need help
    8·1 answer
  • What does k equal in the proportion k/4=33/20
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!