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
olga nikolaevna [1]
3 years ago
9

Quinn returned home one summer's day to find it sweat-inducingly hot! He turned the air conditioner on and fell asleep. The room

's temperature decreased by 0.5^\circ0.5
∘

0, point, 5, degrees Celsius each minute, and Quinn woke up 606060 minutes later when it was 10^\circ10

∘

10, degrees Celsius.

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0

Answer:

f(x)=-0.5x+40

Step-by-step explanation:

To solve this problem, we need to find the linear function. We know that the constant rate of change is -0.5° Celsius per minute. Also, after 60 minutes the temperature was 10° Celsius. So, we have a one point and the slope of the linear function, let's use the point-slope formula

y-y_{1} =m(x-x_{1} )\\y-10=-0.5(x-60)\\y=-0.5x+30+10\\y=-0.5x+40

Where the y-intercept is at (0, 40).

Now, we have two points to graph the relation between minutes and Celsius degrees.

Therefore, the room's temperature as a function of time is

f(x)=-0.5x+40

Its graph is attached.

You might be interested in
Help plz i am confusion plzzzz
zmey [24]

Answer:

Do C and D (Option 3 + 4)

8 0
3 years ago
Read 2 more answers
A car is traveling at a rate of 99 kilometers per hour. what is the car's rate in kilometers per minute? how many kilometers wil
gayaneshka [121]

there are 60 minutes per hour

99/60 = 1.65 km per minute

1.65 x 2 = 3.3 km in 2 minutes

7 0
3 years ago
I need help ASAP middle school work.
Arturiano [62]

Answer:

B

Step-by-step explanation:

For 11  1/2 gallons, he paid $36.80.

We need to find the cost per gallon.

First, converting 11  1/2 gallons to decimal, it is:

1/2 = 0.5

So, 11  1/2  is  11.5 gallons

So, Cost Per Gallon (last week) = \frac{36.80}{11.5}=3.2

There is 5% increase on this $3.20 per gallon. We find 5% of 3.2 and add it to 3.2 to find this week's cost per gallon.

<em>5% = 5/100 = 0.05</em>

<em>0.05 * 3.20 = 0.16</em>

<em>So,</em>

<em>3.20 + 0.16  = $3.36 per gallon</em>

<em />

Cost Per Gallon (this week) = $3.36

To buy 9  1/4 gallons it would take:

3.36*9.25=31.08

<u>Note:</u>  1/4 = 0.25, so 9  1/4 = 9.25

It would cost $31.08  to buy  9.25 gallons this week

Correct answer is B

5 0
3 years ago
For a bake sale, Jeremy is selling cookies for $3.00 a dozen (25 cents for each single cookie). If Jeremy makes $25.75 during th
GREYUIT [131]

Answer:

103

Step-by-step explanation:

25.75 \div 0.25  = 103

3 0
3 years ago
Read 2 more answers
Which figure represents an undefined term?
Fudgin [204]
In geometry, the three undefined terms are: the point, the plane and the straight line.

Since all the given graphs represent lines,we will need to choose the straight line among them.

Straight line is a line that has no start and no end.

From the choices:
Figures a and c are rays
figure b is a line segment
figure d is a straight line

Therefore, the correct choice is: D
8 0
3 years ago
Read 2 more answers
Other questions:
  • Any checking account is set up with an initial balance of 4800 and 300 is removed from the account each month for rent no other
    10·1 answer
  • Which of the following pairs is not correctly written in scientific notation?
    10·1 answer
  • Solve the right triangle ABC with right angle C if B = 30° and c = 10.
    13·1 answer
  • Anothony has 24 squash plants and 18 corn seedlings that he plans to plant in rows on his vegetable garden. Each row will contai
    11·1 answer
  • In AIJK, j = 940 inches, LJ=20° and ZK=50°. Find the length of i, to the nearest<br> inch.
    11·1 answer
  • Graph the image of this figure after a dilation with a scale factor of 2 centered at the origin.
    13·1 answer
  • Dakota made this pattern. 8, 13, 18, 23, 28 Coby uses the same rule as Dakota to make a pattern. He begins his pattern with the
    11·1 answer
  • Pls help ASAP i don’t have time!!!!!
    13·1 answer
  • Answer this please... brainliest.........
    5·2 answers
  • Like what is this and how do you do it please explain clearly and understandable
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!