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
White raven [17]
3 years ago
15

4 + 4 + 4 x 4 - 4 use pemdas please

Mathematics
1 answer:
Anit [1.1K]3 years ago
8 0

Answer:

8 ÷ 2 (2+2)

Step-by-step explanation:

im smart

You might be interested in
Find the surface area of the prism. HELP IT DUe in 10 mins so I will mark you as brainly if you answer correctly
Lyrx [107]

Answer:

answer: 740

Step-by-step explanation:

Hope that helps!

3 0
2 years ago
A radio arm saw has a circular cutting blade with a diameter of 10 inches and it spins at 2000rpm if there are 12 cutting teeth
FinnZ [79.3K]

Answer:

12565.11 teeth approximately cut cross the cutting surface per seconds.

Step-by-step explanation:

Since the diameter is 10inches, the circumference of the arm saw is 10π (circumference is πd where d is diameter).

The number of teeth on the cutting blade can be gotten by multiplying the diameter by 12 since we have 12 teeth per inch on the arm saw

Number of teeth on saw = 12 x 10π = 120π.

To get the number of teeth that cross the cutting surface in 2000rpm we multiple it by the total number of teeth in just one rpm.

So we have 2000 x 120π. But since we are asked to find it in revolution per seconds then 2000r/m = 2000r/60s ≈ 33.33

Therefore, we have

33.33 x 120π ≈ 12565.11 teeth

7 0
3 years ago
Write an inequality that expresses the range in the volume of acceptable tennis balls.
Rudik [331]

Answer:

the smallest number is the lower bound and the largest number is the upper bound, your inequality would be

8.2 ≤ x ≤ 9.5, where x represents the volume of tennis balls.

4 0
3 years ago
Solve the system of equations x+y=-8 and -9x-6y=60 by combining the equations
TiliK225 [7]

Answer:

x = - 4    y = - 4

Step-by-step explanation:

x+y= - 8

-9x-6y=60

First, solve for x in the first equation:

x+y = - 8       Subtract y from both sides

x + y - y = -8 - y    y cancels on the left

x = - 8 - y

Now plug in what you found for x into the 2nd equation and solve for y.

- 9x - 6y = 60

-9(- 8 - y) - 6y = 60   Multiply out

72 + 9y - 6y = 60

72 + 3y = 60  Subtract 72 from both sides

72 - 72 + 3y = 60 - 72    72 cancels on the left

3y = - 12     Divie both sides by 3

3y/3 = -12/3     3 cancels on the left because 3/3 = 1

y = -4

Now plug your answer for y back into the first equation to get x.

x + y = -8

x + (-4) = - 8  Add 4 to each side

x - 4 + 4 = - 8 + 4   4 cancels on the left

x = -4

x = - 4 and y = - 4

8 0
3 years ago
The weight of a nickel is 80% of a quarter. If a nickel weighs 5 grams how much does a quarter weigh?
muminat

Answer:

Weight of a quarter  = 6.25 grams

Weight of a dime  = 2.5 grams

Step-by-step explanation:

The weight of a nickel is  80%

The weight of a quarter  or the weight of a nickel is 5 grams or weight of a quarter =50.8 = 6.25 grams

Weight of a dime = 50% = 12 (weight of nickel) = 52 = 2.5 grams

8 0
3 years ago
Other questions:
  • Posting a screenshot my loves
    14·1 answer
  • The scores on an exam are normally distributed, with a mean of 75 and a standard deviation of 5. What percent of the scores are
    5·1 answer
  • La población de Colombia para el 2018 es de 49 821 512 Si 25'228.444 es la cantidad de mujeres ¿Que porcentaje representan del t
    10·1 answer
  • A vase contains r roses and 6 tulips. Write two equivalent expression for the total number of flowers in the vase.
    5·1 answer
  • What number is 15% of 120
    10·2 answers
  • Bill bought 6 boxes of chocolates. Each box cost $6.57. How much did he spend?<br> ?
    9·2 answers
  • A type of opinion based on observation and evidence.
    7·2 answers
  • HURRY PLEASE I NEED THIS SOON
    15·2 answers
  • Which decimal number best describes the fraction 77/6
    12·1 answer
  • Write an equation for a line that passes through the point (2,9) that is parallel to the line y=5x-3.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!