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
nadya68 [22]
3 years ago
11

By switching service providers , a family's telephone bill decreased from about $ 50 a month to about 44 . What was the percent

decrease ?
Mathematics
1 answer:
anyanavicka [17]3 years ago
6 0

Answer:

12% decrease

Step-by-step explanation:

50 - 44 = 6

6/50 = 0.12 or 12% decrease

You might be interested in
Somebody please help! Marked Brainliest!
olga nikolaevna [1]

Answer:

Part A:

The surface area of a cylinder is given by

A=  6πr² if h= 2r

Part B:

Total Cost of covering the cylinder = Rate *2πrh + rate*2πr²

Cost of covering only the side = Rate *2πrh

Step-by-step explanation:

Part A:

The surface area of a cylinder is given by

A= 2πrh + 2πr²

Where h= height and radius = r

But we have the height twice as radius so h= 2r

So putting h= 2r we get

A= 2πr(2r) + 2πr²

A= 4πr² + 2πr²= 2πr²(2+1) = 2πr²(3)= 6πr²

Part B:

Cost = Rate * area of the wall + rate * area of the top and bottom

Cost = Rate *2πrh + rate*2πr²

Where area of the top and bottom= πr² +πr² =2 πr²

and area of the side = 2πrh

Multiplying both with the rate and then adding would give the total cost of materials needed to cover the outside of the cylinder and from top and bottom as well.

If  you do not need to cover top and bottom then the expression would be

Cost of covering only the side = Rate *2πrh

Part C:

Already done above.

4 0
3 years ago
Please help quick!!!​
hodyreva [135]

Answer:

I wanna say 35 \cm

Step-by-step explanation:

6 0
3 years ago
Line CD contains points A (4, −7) and B (4, 8). The slope of line CD is
Fofino [41]

Answer:

Undefined

Step-by-step explanation:

Slope of CD

=  \frac{8 - ( - 7)}{4 - 4}  =  \frac{8 + 7}{0}  =  \infty \\

Hence, Slope of CD is undefined.

4 0
3 years ago
In your own words, define Quadratic Equation. How many solutions does a Quadratic Equation have?
dmitriy555 [2]

Answer: an equation that has one term which is nameless and squared also no term which gets raised to higher power.

Step-by-step explanation:

5 0
3 years ago
Can someone please help me??
valkas [14]
The answer is 78 feet of fencing. This is because you need to find the perimeter of the yard. To find the perimeter of the yard, you add the sides together, so 21+21+18+18 = 78.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the system of equations by the substitution method.
    14·1 answer
  • Kevin's work for deriving the equation of a circle is shown below. x2 + 4x = −(y2 − 20) step 1 x2 + 4x = −y2 + 20 step 2 x2 + 4x
    13·1 answer
  • RT = 60 so what is RS
    15·2 answers
  • 6 inches edgesof what's the volume of jewelry box
    11·1 answer
  • a rectangle has a area of 24 square untis and a side length of 3/4 units. find the other side of the rectangle.
    11·1 answer
  • Help, I’ll give brainliest if you tell me what like terms and terms are.
    12·1 answer
  • Which of the following set of ordered pair is a function? A {(9,0), (9, 1), (9,2), (9,3)} B [(-1,0), (-2, 0), (2,0), (1,0)} C {(
    11·1 answer
  • What is the best estimate of the sum of the fractions?
    7·1 answer
  • 7x + 4(x+5)<br> I will give brainliest to first person who answers!!!!!!!!!
    12·1 answer
  • If the magnitude of vector u is ||u||=7.81 and its angle of direction is 129.81°, which graph represents vector -u?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!