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
Igoryamba
3 years ago
15

Why does -30 - - 50 equal 20? What steps are being done?

Mathematics
2 answers:
12345 [234]3 years ago
7 0

Answer:

Step-by-step explain

1. 30-50=20

2. Two negatives equal a positive

So first you subtract 30 by 50 and get 20 then you look at the signs which are both negative. Meaning both of the negative signs become a positive. (-30)-(-50)=20

ale4655 [162]3 years ago
6 0
Two negatives equal a positive, so its just like subtracting 50 and 30, but your answer will be a positive.
You might be interested in
How do u simplify this expression 8.9-1.4x+(-6.5x)+3.4?
Mumz [18]

Answer:

-5.1x + 12.3

Step-by-step explanation:

Combine like terms:  first, combine the x terms, obtaining -5.1x.

Next, combine the constants, obtaining 12.3.

The simplified expression is -5.1x + 12.3

7 0
3 years ago
Find f. f ''(x) = −2 + 36x − 12x2, f(0) = 8, f '(0) = 18 f(x) =
Alik [6]
Integrate <span>f ''(x) = −2 + 36x − 12x2 with respect to x:

f '(x) = -2x + (36/2)x^2 - (12/3)x^3 + c.  Find c by letting x = 0 and using f(0)=8.

Then f '(0) = -2x + 18x^2 - 4x^3 + c = 18 (which was given).

Then             -0      + 0      - 0 + c = 18, so c = 18 and 

f '(x) = </span>-2x + 18x^2 - 4x^3 + 18.

Go through the same integration process to find f(x).
8 0
3 years ago
What is 362,000 rounded to the nearest ten thousand
Anon25 [30]

Answer:

360,000

Step-by-step explanation:

4 0
3 years ago
What the common Denominator of 7/8 and 3/10?
ankoles [38]
The common denominator would be 40
3 0
3 years ago
Ellie practices piano 2/3 h per day, several days each week. She practiced piano 32 2/3 hours during the summer. What equation c
SVEN [57.7K]

hello :)

so let me just give you the answer first:

2/3 * d = 32 2/3

here is why

so since the sentence said 2/3 PER day, then d (the number of days) multiplied by the time spent each day playing piano should give you how much time was spent in total over the certian number of days.

the 32 2/3 is just the amount of time ellie spent (as you have said)

so, this equation would be the correct one.

i hope this helped you out! please vote me for brainliest and have splendid day!

4 0
3 years ago
Other questions:
  • Ayayayayauauauaua help
    9·1 answer
  • NIne times ten to the negative power of three
    6·1 answer
  • Find the distance between points(-9,2) and (5,-4) round to the nearest tenth
    8·1 answer
  • (9x+13)^2=49<br> Solve the quadratic equation given below.
    14·1 answer
  • What is 6 divided by 1 fourth
    8·1 answer
  • Write a word problem that could be solved by writing and solving a multistep equation.Then solve your problem.
    13·1 answer
  • At practice, Noah does twice as many push-ups as Diego, and also 40 jumping jacks. He does 62 exercises in total.
    12·2 answers
  • I need help I don’t get it
    8·1 answer
  • Can you help me get have a test tomorrow
    14·1 answer
  • The sum of two numbers is 84. The square of the first number is 6 more than the second number.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!