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
miv72 [106K]
3 years ago
11

The local sports shop has backpacks on sale for $28. The original price was $40. What is the percent decrease for the backpack p

rice?
Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0
30%. 40-28 =12. 12/40 =30%
You might be interested in
Which of the following values in the set below will make the equation 2x + 1 = 3 true? (Only input the number.)
slava [35]
The only one that makes sense is 1
7 0
3 years ago
Read 2 more answers
What is the value of x?
Ksenya-84 [330]

Step-by-step explanation:

\frac{360 - 2(x  +  30)}{2}  = x \\  360 - 2x - 60 = 2x \\ 300 - 4x = 0 \\ 4x = 300 \\ x = 300  \div 4  = 75

4 0
3 years ago
Read 2 more answers
Simplify the answer pls
disa [49]

Answer:

Step-by-step explanation:

24/3 - 4

8 - 4 = 4

4 0
3 years ago
Find all values of c in the open interval (a, b) such that f'(c)=(f(b)-f(a))/(b-a)
timama [110]
<h3>Answer:   c = 7/4</h3>

================================================

Work Shown:

Compute the function value at the endpoints

f(x) = \sqrt{4-x}\\\\f(-5) = \sqrt{4-(-5)} = 3\\\\f(4) = \sqrt{4-4} = 0\\\\

With a = -5 and b = 4, we have

f'(c) = \frac{f(b)-f(a)}{b-a}\\\\f'(c) = \frac{f(4)-f(-5)}{4-(-5)}\\\\f'(c) = \frac{0-3}{9}\\\\f'(c) = -\frac{1}{3}\\\\

So,

f(x) = \sqrt{4-x}\\\\f'(x) = -\frac{1}{2\sqrt{4-x}}\\\\f'(c) = -\frac{1}{3}\\\\-\frac{1}{2\sqrt{4-c}} = -\frac{1}{3}\\\\

Use algebra to solve for c

-\frac{1}{2\sqrt{4-c}} = -\frac{1}{3}\\\\\frac{1}{2\sqrt{4-c}} = \frac{1}{3}\\\\3 = 2\sqrt{4-c}\\\\2\sqrt{4-c} = 3\\\\\sqrt{4-c} = \frac{3}{2}\\\\4-c = \frac{9}{4}\\\\c = 4-\frac{9}{4}\\\\c = \frac{16-9}{4}\\\\c = \frac{7}{4}\\\\

6 0
3 years ago
Slope of (6,1) and (-4, -4)
Nady [450]
-1/15, use the slope formula
3 0
3 years ago
Read 2 more answers
Other questions:
  • Your computer server recently crashed and you need to make changes to a large manual. The manual contains approximately 16,000 w
    9·1 answer
  • .
    13·1 answer
  • Compare the decimals below <br><br> 9.26 _ .926
    14·1 answer
  • I need help please?!!!
    15·2 answers
  • Which is the area of a circle with a circumference of 37.68 units (use 3.14)
    14·1 answer
  • A fence is 692 m long. It is cut into three parts. Two parts are the same length, and the third part is 26 m longer than either
    8·1 answer
  • In the expression 2a-5+4a-9, name the constants​
    5·1 answer
  • Solve the triangle. Round your answers to the nearest tenth.
    14·1 answer
  • What are two ratios that are equivalent to 2: 12.<br> Choose 2 answers:
    7·2 answers
  • Can someone help me with this equation y=-x+4 and y=3x
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!