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
Romashka [77]
2 years ago
7

The temperature dropped 4 degrees each hour for 3 hours. What was the total change in temperature?

Mathematics
2 answers:
Simora [160]2 years ago
5 0

Answer:

12

Step-by-step explanation:

Svetllana [295]2 years ago
3 0

Answer:

12 degrees

Step-by-step explanation:

You have to multiply the degrees by hours

You might be interested in
Solve the system of equations using the substitution method.
Delicious77 [7]

Answer:

x = 14

y = -3

Step-by-step explanation:

Given

2x + 8y =4

x = -3y + 5

Required

Solve

Substitute x = -3y + 5 in 2x + 8y =4

2(-3y + 5) + 8y =4

Open bracket

-6y + 10 + 8y =4

Collect like terms

-6y +  8y =4-10

2y =-6

Divide both sides by 2

y = -3

Substitute y = -3 in x = -3y + 5

x = -3 * -3 + 5

x = 9+ 5

x = 14

8 0
3 years ago
What is 5X minus Y equals 6+ negative 2X plus Y=8
vova2212 [387]

Answer:

For the given expression: X = (\frac{10}{3})  , Y =  (\frac{26}{3})

Step-by-step explanation:

Here, the given expression in statement form is given as:

5 X minus Y equals 6 + negative 2 X plus Y = 8

Now, converting the given statement mathematically, we get:

5X  - Y  = 6 + (-2X) + Y  = 8

Now, considering first  and the last  terms,we get:

5 X - Y  = 8  .... (1)

and , considering second and the last  terms,we get:

6 + (-2X) + Y  = 8 or, -2X  + Y  = 2  ......... (2)

Adding (1) and (2) , we get:

5 X - Y  - 2 X  + Y  = 8 + 2

or, 3 X =  10

or, X = 10/3  = 3.34

Now, 5X - Y = 8

or, 5(\frac{10}{3}) - Y = 8\\ \implies Y = \frac{50}{3} - 8  = \frac{50 - 24}{3}  = \frac{26}{3} \\\implies Y = \frac{26}{3}

Hence, for the given expression:

X = (\frac{10}{3})  , Y =  (\frac{26}{3})

3 0
3 years ago
What is the solution to the system of equations?<br> O (-8,-4)<br> O(-4,-8)<br> O (44)<br> 0 (4-4)
Novay_Z [31]

Answer:

Step-by-step explanation:

I'm pretty sure the answer is C sorry if I'm wrong

3 0
2 years ago
Read 2 more answers
--&gt; The managers want to know how many boxes of 12 cookies can
kifflom [539]

Answer:

271 boxes

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the area of a semicircle with the diameter of 15
Alina [70]

Answer:

you divide 15 by 2 to get the radius, then do pie times radius to the second power, so

3.14*7.5*7.5= 23.55

that is ur answer!

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • How do u plot the points from the equation y=-2x+1 and y=3x-1
    9·1 answer
  • The range of which function is (2,infinity)
    7·1 answer
  • The space shuttle flight control system called PASS (Primary Avionics Software Set) uses four independent computers working in p
    9·1 answer
  • The difference between a number and 6 is the same as 5 times the sum of the number and 2. What is the number?
    11·1 answer
  • Is the difference of two polynomials always a polynomial? Explain..
    12·1 answer
  • Factor this expression completely.
    12·1 answer
  • Khalil signed up for a plan with a cable television company where he pays a monthly fee of $65.00, plus an additional $4.99 for
    14·1 answer
  • What is bigger 7/12 or 1/2
    10·2 answers
  • Michelle's bird feeder holds 4/5 of a cup of birdseed. Michelle is filling the bird feeder with a scoop that holds 2/5 of a cup.
    12·2 answers
  • Write a fact family for each set of numbers.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!