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
Bond [772]
3 years ago
6

20% of a is 11, what is a

Mathematics
1 answer:
KiRa [710]3 years ago
5 0

Answer:

20% of a is 11, what is a

a =55

75% of b is 12, what is b

b = 16

80% of c is 20, what is c

c = 25

200% of d is 18, what is d

d = 9

Step-by-step explanation:

20% of a is 11, what is a

20a = 1100

a =55

75% of b is 12, what is b

75b = 1200

b = 16

80% of c is 20, what is c

80c = 2000

c = 25

200% of d is 18, what is d

200d = 1800

d = 9

You might be interested in
Refer to the following data set: What is the median?
nadezda [96]

Answer:

8

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
If the side length is increased by a factor of 3, how much larger is the perimeter of a face of the new cube?
Luden [163]
The <span>perimeter of a face of the new cube is 8 times larger than the previous cube.
</span>Let us say, the side of cube before increase is "a"
Then perimeter of the cube = 12a ,

because the cube has 12 sides.
And perimeter of a face of cube = 4a
Now, the side length is increased by factor of 3 i.e. new side is 3a
Thus, perimeter of new face of the cube = 4*3a = 12a

Therefore, the new perimeter is larger by = 12a - 4a = 8a 
6 0
3 years ago
decide if the following change is an increase or decrease. then determine the percent of change. senior citizen receive a 10% di
BARSIC [14]

The oldster got a discount, so the original price is higher; let's call it x;

(1 - 0.10) x = 12.60

.9 x = 12.60

x = 12.60/0.9  = 14.00

Answer: $14.00

8 0
2 years ago
Is -7/8 equivalent to 8 / -7
alexandr402 [8]

Answer:

No

Step-by-step explanation:

Because -7/8= -0.875, while 8/-7= -1.142

3 0
3 years ago
Read 2 more answers
According to postal regulations, a carton is classified as "oversized" if the sum of its height and girth (the perimeter of its
Amanda [17]

Answer:

V(max) =  8712.07 in³

Dimensions:

x (side of the square base)  = 16.33 in

girth   = 65.32 in

height = 32.67 in

Step-by-step explanation:

Let

x  = side of the square base

h = the height of the postal

Then according to problem statement we have:

girth = 4*x     (perimeter of the base)

and

4* x  +  h  = 98  (at the most)   so   h = 98 - 4x  (1)

Then

V = x²*h

V = x²* ( 98 - 4x)

V(x) = 98*x² - 4x³

Taking dervatives (both menbers of the equation we have:

V´(x)  =  196 x   -  12 x²        ⇒   V´(x) = 0

196x - 12x²  = 0   first root of the equation  x = 0

Then   196 -12x = 0      12x = 196     x = 196/12

x = 16,33 in      ⇒    girth = 4 * (16.33)       ⇒ girth = 65.32 in

and from equation (1)

y = 98 - 4x       ⇒  y = 98 -4 (16,33)

y = 32.67 in

and maximun volume of a carton V is

V(max) = (16,33)²* 32,67

V(max) = 8712.07 in³

3 0
3 years ago
Other questions:
  • Fiona has a job at a garage.
    5·1 answer
  • What is 3/5 estimated to
    15·2 answers
  • Ally needs 65 cm of fabric for the pillows she is making. The fabric cost $4.20 for meter and the stuffing for the pillow cost $
    10·1 answer
  • I just need help set up
    15·1 answer
  • I have 30 coins consisting of nickels, dimes and quarters. The total value of the coins is $4.60. there are two more dimes than
    9·1 answer
  • HELP PLZ I NEED HELP
    12·1 answer
  • A scale drawing has a scale of 3in:1ft. What is the scale factor?​
    7·1 answer
  • Find the solutions to the equation sqr3 sin x/2
    10·2 answers
  • Find the nth term for the sequence 20,18,16,14..
    12·1 answer
  • (02.03)
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!