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
Gelneren [198K]
2 years ago
12

At the start of a lab experiment, the temperature of a liquid was 15 °C. The temperature of the liquid was lowered by 9.5 °C eve

ry hour
for 3 hours, and then the final temperature was recorded.
What was the final temperature of the liquid?
Mathematics
1 answer:
scoundrel [369]2 years ago
3 0

Answer:

Answer is -13.5C

Step-by-step explanation:

9.5 times 3 is 28.5 15 - 28.5 is -13.5 C

You might be interested in
A circle has a circumference of 50.24 units
aleksandrvk [35]

Answer:

what are you trying to ask? I hope these help:

Diameter: 16 units

Radius: 8 units

Area: 200.96 units

Step-by-step explanation:

Diameter: circumference ÷ π

Radius: diameter ÷ 2

Area: pi times radius²

8 0
3 years ago
3(2x-5)= 21<br> solve it 2 different ways <br> plzz hurry i need help
docker41 [41]

Answer:

x = 6

Step-by-step explanation:

3 (2x - 5) = 21

=> 6x - 15 = 21

=> 6x = 21 + 15

=> 6x = 36

=> x = 36 / 6

=> x = 6

OR

3 (2x - 5) = 21

=> 2x - 5 = 21 / 3

=> 2x - 5 = 7

=> 2x = 7 + 5

=> 2x = 12

=> x = 12 / 2

=> x = 6

Hope it helps :)

Please mark my answer as the brainliest

4 0
3 years ago
Read 2 more answers
PLEASE HELP!!! I WILL MARK BRAINLEST!!!
storchak [24]

Answer:

Each hat is $5

Each mask is $3

Step-by-step explanation:

Hat= x dollars

Mask= y dollars

Now,

3 hats and 4 mask sold = $27

We can write

3x + 4y = 27

Adding the second equation (-1 times 1st equation) gives us;

3x + 6y = 33

-1* (3x + 4y = 27)

3x + 6y = 33

-3x -4y = 27

2y = 6

y = 6/2

***y = 3***

Now we replace y= 3 into 1st equation and solve for x:

3x + 4y = 27

3x + 4(3) = 27

3x + 12 = 27

3x + 15

x = 15/3

***x= 5***

Each hat costs $5

Each mask costs $3

6 0
3 years ago
The price of a technology stock has dropped to $9.71 today. Yesterday's price was $9.80. Find the percentage decrease.
Vadim26 [7]

Answer:

The percentage decrease = 0.9%

Step-by-step explanation:

  • Initial value = $9.80
  • Final value = $9.71

Using the formula

Percentage Decrease = [ (Initial Value - Final Value) / |Initial Value| ] × 100

                                    = [(9.80 - 9.71 ) / (9.80)] × 100

                                    = [0.09 / 9.80] × 100

                                    = 0.009 × 100  

                                    = 0.9%

Therefore, the percentage decrease = 0.9%

4 0
3 years ago
Need help on polynomials
kkurt [141]
Follow these steps and you should get your answer its not the same questions but it should help
The answer to the problem is as follows:

These two polynomials are 5x^2 + 3x + 5 and 3x^2 +2x + 2:

Subtracting the second expression from the first:

<span>5x^2 + 3x + 5
- (3x^2 +2x + 2)
</span>____________
<span>2x2 + x + 3  <------------- The difference
</span>


7 0
3 years ago
Other questions:
  • The following function is probability mass function. f left-parenthesis x right-parenthesis equals StartFraction 2x plus 1Over 2
    7·1 answer
  • Reduce the fraction 36/48 to its lowest term
    11·1 answer
  • Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation
    12·1 answer
  • Which of these is closest to the weight of a standard basketball? A) 1 ounce B) 1 pound C) 10 pounds D) 100 ounces
    6·2 answers
  • Andre' went to the store where 3 bags of gummie bears were $6.30. How many were 7 bags of gummie bears?
    7·2 answers
  • Here is a list of numbers.
    15·1 answer
  • Bill invests $2,537 in a retirement account with a fixed annual interest rate of 7% compounded 4 times per year. What will the a
    10·1 answer
  • Help me this is one of my final classes before i graduate so hurr asap its a lot of points
    13·1 answer
  • Plzzzzzzzzzzzzzzzzzzzzzz
    7·1 answer
  • What is the absolute value of a number
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!