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
ololo11 [35]
2 years ago
9

Increase 400 by 10% and then decrease the answer by 10%

Mathematics
2 answers:
makvit [3.9K]2 years ago
8 0

Answer:80

Assume the number to be 400 for instance,

10% of 400 increased = 400 + ( 10/100 × 400 )

= 400 + 40 = 440

The resulting number decreased by its 10% = 400 - (10/100 × 400)

= 400 - 40 = 360

Now, net decrease = 440 - 360 = 80

erik [133]2 years ago
7 0

Answer:

400.

10% of 400 is 40 (Simply reduce the hundreds place to the tens place)

So now we have 440.

Decrease it by 10% again, and that brings you right back to 400.

You might be interested in
If mÃc=170° Find mLB
kenny6666 [7]

Answer:

∠ B = 85°

Step-by-step explanation:

the inscribed angle B is half the measure of its intercepted arc AC , then

∠ B = \frac{1}{2} × 170° = 85°

8 0
2 years ago
Find the components of the vertical force Bold Upper Fequalsleft angle 0 comma negative 8 right anglein the directions parallel
nydimaria [60]

Answer with Step-by-step explanation:

We are given that

F=<0,-8>=0i-8j=-8j

\theta=\frac{\pi}{3}

The component of force is divided into two direction

1.Along the plane

2.Perpendicular to the plane

1.The vector parallel to the plane will be=r=cos\frac{\pi}{3}i-sin\frac{\pi}{3}j=\frac{1}{2}i-\frac{\sqrt 3}{2}j

By using cos\frac{\pi}{3}=\frac{1}{2},sin\frac{\pi}{3}=\frac{\sqrt 3}{2}

Force along the plane will be=\mid F_x\mid=F\cdot r

Force along the plane will be =\mid F_x\mid=F\cdot (\frac{1}{2}i-\frac{\sqrt 3}{2}j)=-8j\cdot(\frac{1}{2}i-\frac{\sqrt 3}{2}j)=8\times \frac{\sqrt 3}{2}=4\sqrt 3N

By using i\cdot i=j\cdoty j=k\cdot k=1,i\cdot j=j\cdot k=k\cdot i=j\cdot i=k\cdot j=i\cdot k=0

Therefore, force along the plane=\mid F_x\mid(\frac{1}{2}i-\frac{\sqrt 3}{2}j)=4\sqrt 3(\frac{1}{2}i-\frac{\sqrt 3}{2}j)

2.The vector perpendicular to the plane=r=-sin\frac{\pi}{3}-cos\frac{\pi}{3}=-\frac{\sqrt 3}{2}i-\frac{1}{2}j

The force perpendicular to the plane=\mid F_y\mid=F\cdot r=-8j(-\frac{\sqrt 3}{2}i-\frac{1}{2}j)

The force perpendicular to the plane=4N

Therefore, F_y=4(-\frac{\sqrt 3}{2}i-\frac{1}{2}j)

Sum of two component of force=F_x+F_y=4\sqrt 3(\frac{1}{2}i-\frac{\sqrt 3}{2}j)+4(-\frac{\sqrt 3}{2}i-\frac{1}{2}j)

Sum of two component of force=2\sqrt 3i-6j-2\sqrt3 i-2j=-8j

Hence,sum of two component of forces=Total force.

6 0
3 years ago
What is an advantage of using a checking account
horsena [70]
I have to say b. Hope this helps!!! Brainleist Please I only need two more
8 0
3 years ago
A square pyramid has a base side length of 20. 4 cm and a height of 18. 2 cm. Which square pyramid is similar? base side length
Novay_Z [31]

Answer C. base side length = 30.6 cm, height = 27.3 cm

5 0
2 years ago
When is the product of two nonzero integers less than or equal to both of the two factors?
Leona [35]

It would mean a nonzero integer. Due to the fact that a non-zero x a non-zero integer equals a nonzero integer. But here is the question, if the nonzero integer equals the amount of dog food my dog consumes how am I supposed to paint the walls red if the cat won't jump off the nonzero integer. The fish won't slide therefore the bird can't swim.

8 0
3 years ago
Other questions:
  • What information would allow you to identify angle BFA and angle AFE as complementary angles?
    5·1 answer
  • What is (3x+6)-(2x+2)
    9·1 answer
  • 2 1/2 + 2 1/3 + 3 2/3
    12·1 answer
  • Eliana drank. 2/4 of bottle of sprite,katty drank 1/2 of the bottle,how much of sprite did they drink in all?
    5·2 answers
  • Is 15.19 less than 15.162?
    7·2 answers
  • Which function is a horizontal translation of the parent quadratic function, f(x)=x^2?<br> HELP PLS
    12·1 answer
  • What is (5a2 − 3a + 8) + (−4a2 − 1) + (15a + 11) expressed in its simplest form?
    14·2 answers
  • What is the volume of the prism ?
    13·2 answers
  • Find the domain and range
    15·1 answer
  • What is the exact value of e?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!