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
Anvisha [2.4K]
3 years ago
6

Which set is closed under subtraction?

Mathematics
2 answers:
ss7ja [257]3 years ago
8 0
The set of rational numbers.
Gemiola [76]3 years ago
7 0

the answer is the set of rational numbers

You might be interested in
What is the length of side a? Round to the nearest tenth of an inch
slamgirl [31]

Answer:

ok this is easy all it is 16-7=9 so a=9 so all it is 7x9=72 then its 72 divided by 2 so your answer is 36

3 0
2 years ago
Read 2 more answers
Printing machine A and printing machine B print the same newspaper printout, but machine B prints at half the rate of machine A.
klemol [59]

Answer:

The answer is below

Step-by-step explanation:

Let us assume the rate of printing in machine A is x per hour and the rate for machine B is y. Given that machine B prints at half the rate of machine A, therefore:

y = (1/2)x                       (1)

Also, both machine produces 200 newspaper printouts, and both operate at different times for a total of 4 hours. Therefore:

200/x + 200/y = 4       (2)

Put y = (1/2)x in equation:

\frac{200}{x}+\frac{200}{(\frac{1}{2} )x}=4\\ \\ \frac{200}{x}+\frac{400}{x}=4\\\\Multiply\ through\ by\ x:\\\\200+400=4x\\\\4x=600\\\\x=150

Put x = 150 in equation y:

y=(1/2)150 = 75

Therefore the rate of machine A is 150 newspapers per hour while that of machine B is 75 newspapers per hour

6 0
3 years ago
For the problem 9+2(3) do you get the final answer if you had first as you do if you multiply first​
mel-nik [20]

Answer:

15

Step-by-step explanation:

you have to multiply first because of the order of operations, so 2 × 3 = 6, and 6 + 9 = 15

6 0
3 years ago
Read 2 more answers
Find the product.
Inga [223]
(2p + 7)(3p-9)
2p x 3p= 6p^2
2p x -9= -18p
7 x 3p=21p
7 x -9=-63
6p^2 - 18p + 21p - 63
6p^2 + 3p -63 is the answer.

6 0
3 years ago
Read 2 more answers
a truck is rented at 40$ per day plus a charge per mile use. The truck traveled 15 miles in one day, and the total charge was 11
Alla [95]

Answer:

15x + 40 = 115

We set the equation to 115 because the total cost is $115.

We add the "+ 40" because of the $40 to rent the trailer for the day.

The 15x is because it represents the miles per hour (x) times the number of hours.

The number of hours times the charge per mile, plus the $40 to rent it, will equal $115.

Hope this helps!!

5 0
3 years ago
Other questions:
  • EXTRA EXTRA EXTRA POINTS POINTS POINTS AND BRAILINIEST***
    15·2 answers
  • Subtraction:<br><br> 57 - 28 = ? Show how to solve it step by step.
    11·1 answer
  • Anyone know the answer?
    6·1 answer
  • What is 345 x 12? Plz tell me the answer
    9·1 answer
  • Simplify the expression.
    15·1 answer
  • Solve the equation x^4+7x^2-18=0 and express each solution in a+bi form
    9·1 answer
  • If a right rectangular pyramid is sliced perpendicular to its base into two congruent pieces, which two-dimensional plane sectio
    11·1 answer
  • A jet ski can go 50 miles using one gallon of gas. About how many gallons of gas will be used to go 150 kilometers?
    10·1 answer
  • Please help me with this homework
    9·1 answer
  • The toy store is clearancing out their chess sets. They originally sell for $24.99, but are on sale for $15.00. What is the diff
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!