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
hammer [34]
3 years ago
5

At 7 pm the temperature was 40 degrees f. If the temperature dropped steadily at a rate of 6 degrees per hour, what was the temp

erature at midnight?
Mathematics
2 answers:
Firlakuza [10]3 years ago
8 0
12pm-7pm = 5. 5x6 = 30. 40-30=10degrees
MissTica3 years ago
7 0

Answer:

10 degrees

Step-by-step explanation:

12-7=5 hours

40-(6X5)=10 degrees

You might be interested in
I have 3 times as much money as my brother. Our total is $24. How much does each of us have?I have 3 times as much money as my b
musickatia [10]

Answer:

Brother's money  = $6

Money I have  = $18

Step-by-step explanation:

Hi, to answer this question we have to write an equation with the information given:

<em>I have 3 times as much money as my brother: </em>

Money I have = 3x  

Where x is the money that my brother has:

Brother's money = x

<em>Our total is $24 </em>

So, 3x+x =24

Solving for x

3x+x=24

4x =24

x =24/4

x = 6

Replacing with the value of x.

Brother’s money = x = $6

Money i have = 3x =3(6) = $18

6 0
3 years ago
HELP ASAPPPP !!!!!!!!!!!......
irina [24]

Answer:

just use a calculator

8 0
3 years ago
In the isosceles △ABC m∠ACB=120° and AD is an altitude to leg BC . What is the distance from D to base AB , if CD=4cm?
snow_lady [41]

If ΔACB is an isosceles triangle, then ∠A ≅ ∠B and AC ≅ CB

Since ∠C = 120° and ∠A + ∠B + ∠C = 180°, then ∠A = 30° and ∠B = 30°

Next, look at ΔADB.  ∠A + ∠D + ∠B = 180°, so ∠A + 90° + 30° = 180° ⇒ ∠A = 30°

Now look at ΔADC.  Since ∠A = 30° in ΔACB, and ∠A = 60° in ΔADB, then ∠A = 30° in ΔADC <em>per angle addition postulate.</em>

Now that we have shown that ΔADB and ΔADC are 30-60-90 triangles, we can use that formula to calculate the side lengths.

CD = 4 cm (given) so AC = 2(4 cm) = 8 cm

Since AC ≅ BC, then BC = 8 cm. Therefore, BD = 4 + 8 = 12 <em>by segment addition postulate.</em>

Lastly, look at ΔBHD.  Since ∠B = 30° and ∠H = 90°, then ∠D = 60°. So, ΔBHD is also a 30-60-90 triangle.

BD = 12 cm, so HD = \frac{12}{2}cm = 6 cm

Answer: 6 cm



8 0
3 years ago
Read 2 more answers
What is the following product?
Inessa [10]
The answer is 98-40 square root 6
5 0
3 years ago
Read 2 more answers
If −1 is a zero of the polynomial p(x)=ax^3−x^2+x+4, find the value of a.
vitfil [10]

Answer:

a = 2

Step-by-step explanation:

given x = - 1 is a zero then f(- 1) = 0 , that is

a(- 1)³ - (- 1)² - 1 + 4 = 0

- a - 1 - 1 + 4 = 0

- a + 2 = 0 ( subtract 2 from both sides )

- a = - 2 ( multiply both sides by - 1 )

a = 2

8 0
2 years ago
Other questions:
  • Multiply.<br> (x + 7)(3x - 2)<br><br> ( please answer with <br> A. <br> B.<br> C.<br> D.
    9·2 answers
  • A jar if dimes and quarters is worth $4.55. If there are the same number of dimes as quarters, what is the value of only the dim
    8·1 answer
  • 15 points + brainly
    10·2 answers
  • I get stuck whit these I don’t get how to do them
    9·1 answer
  • What are the possible number of negative zeros of f(x) = -2x7 - 2x6 7x5 - 7x4 4x3 4x2 ?
    7·1 answer
  • Find the midpoint of PQ
    9·1 answer
  • You can raise $48 walking a mile. What is the rate of raising money
    10·2 answers
  • The net of a rectangular prism is shown.
    12·1 answer
  • The bag contains green yellow and orange marbles. The ratio of green marbles to yellow marbles is 2 to 5. The ratio of yellow ma
    6·1 answer
  • Jodie made a New Year's resolution to learn how to play the violin. She bought an
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!