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
GREYUIT [131]
3 years ago
8

You place a cup of 205F coffee on a table in a room that is 72F, and 10 minutes later, it is 195F. Approximately how long will i

t be before the coffee is 180F?
Mathematics
2 answers:
Over [174]3 years ago
8 0
The closest answer would be 35 minutes.
Ray Of Light [21]3 years ago
7 0

Answer:27 Minutes


Step-by-step explanation:Apex


You might be interested in
Someone please help me thank you
Igoryamba

Answer:

x = - 1

Step-by-step explanation:

Given

4x = x^2 - 5               Transfer 4x to the right side.

Solution

x^2 - 4x - 5 = 0          Factor

(x - 5)(x + 1)

You want the negative solution. That means that the middle sign must be plus.

x + 1 = 0                   Subtract 10 from both sides

x = - 1                       Ten on the left disappears by the subtraction process.

Is that correct?

4x = x^2 - 5

x = - 10

4*(-1) = (-1)^2 - 5

-4  = ? 1 - 5

-4 = - 4

and it does work.  

8 0
3 years ago
Select the correct answer<br> Solve this equation<br> X+4/6x = 1/x
laila [671]

Answer:

A) x = 0, 2

Step-by-step explanation:

(x + 4) / 6x =  1 / x

this is a proportion, so you can cross-multiply and get:

x(x + 4) = 6x

x² + 4x = 6x

x² - 2x = 0

x(x - 2) = 0

x = 0

x - 2 = 0  so, x = 2

5 0
2 years ago
In your own words, explain why there is no solution to the following equation:| x-6|= -8 Also, knowing this, how does it help to
solniwko [45]

Answer:

Step-by-step explanation:

So the two lines before and after the expression means absolute value, or modulus of, knowing this, it means that the answer must always yield positive. So if x-6 is positive, it will stay positive, if x-6 is negative, it will turn positive, therefore it can never yield a negative value.

Now im assuming the second question is meant to be absolute value of x-5 is less than 0, because it makes no sense otherwise.

So now knowing that x-5 is always positive, or 0, but this inequality only wants less than 0, this means there are no solutions for the inequality.

5 0
3 years ago
Add: (4a.”+ 6a2- 10a - 4) +(6a + a²+ a + 7)
sineoko [7]
(2a-1 )exponent two•(3a + 2) exponent 2• (4a-3) exponent 2
3 0
3 years ago
Five divided by the sum of three times a number and one is equal to 20. find the number
Kipish [7]

Answer:

4

Step-by-step explanation:

5 divided by 3 times

5/5/5=.2

.2*20=4

8 0
3 years ago
Other questions:
  • Janke’s garden is in the shape of a right isosceles triangle with base 3.4 m. If she enlarges her garden to a similar shape whos
    5·1 answer
  • 2. A rectangle has an area of 7 7/8 square inches and a length of 3 1/2 inches. The rectangle's width is ____ inches. Write your
    8·1 answer
  • The scalar product can be described as the magnitude of B times the component of A that is parallel to B. In terms of the positi
    11·1 answer
  • A playground is in the shape of a square . If the perimeter of the playground is 60 feet , find the diagonal distance across the
    10·1 answer
  • What is an exponent?
    8·2 answers
  • Time zones around the world are either ahead (+) or behind (-) Greenwich Mean Time (GMT). If it is 9 p.m. in Greenwich, England,
    15·2 answers
  • What is the common ratio for the sequence 1, 4, 16, 64,...? <br>1/4<br>1/2<br>2<br>4​
    11·2 answers
  • Which comparison is correct?<br><br> 7 -7<br> -9 &gt; 4<br> -6 &gt; -5
    6·1 answer
  • Hurry!! Worth 10 points
    9·2 answers
  • 3. If your siice a rectangular pyramid parallel to it base, what will be the shape of the cross section?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!