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
evablogger [386]
2 years ago
5

Mary estimated that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error fo

r her estimate? (Hint: subtract and then divide by actual number)
Mathematics
1 answer:
Eduardwww [97]2 years ago
6 0

Answer:

The percent error is 40%.

Step-by-step explanation:

5 (actual time) - 3 (estimated time) = 2

2 divided by 5 (actual time) = 0.4

0.4 x 100 = 40%

You might be interested in
Use the distributive property to answer 9x19
Rus_ich [418]

Answer: 9x19=171

Step-by-step explanation:

Jon has 9times as many mm as lala has 19 more then jon.

6 0
2 years ago
In Area A, the insurance coverage rate for a wood frame house is 0.46%. In Area B, the insurance coverage rate for a wood frame
Karo-lina-s [1.5K]
To solve for the homeowner's insurance payment for house built in Area B, we simply multiply the cost of the house with the insurance coverage rate in its decimal equivalent. From the given problem,
                               annual insurance payment = ($65,900)(0.0054)
                                           = $355.86
Thus, the answer is letter A. 
5 0
3 years ago
Find the domain of ( (a+b/b) − (a/a+b))÷( (a+b/a) − (b/a+b) )
Alexandra [31]

Answer:

Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, a=-b

Step-by-step explanation:

The domain refers to values for which the expression is defined.

This implies that, the denominators are not equal to zero.

(\frac{a + b}{b} -  \frac{a}{a + b}) \div ( \frac{a + b}{a} -  \frac{b}{a + b})

(\frac{(a + b)(a + b)-ab}{b(a + b)})\div(\frac{(a + b)(a + b)-ab}{a(a + b)})

\frac{(a + b)(a + b)-ab}{b(a + b)} \times\frac{a(a + b)}{(a + b)(a + b)-ab}

\implies \frac{a}{b}

Hence the domain is given as,b is such that b is a member of all real numbers,except b=0,a=0, and a=-b

7 0
2 years ago
Read 2 more answers
Can you guys help me with this?
zvonat [6]

Answer:

The leghts of AB is 9 because both of the triangles are symmetrical. But also, this is a Equilateral triangle, which means that both of the sides are the same lengths (AB=AC)

6 0
2 years ago
Read 2 more answers
How do you evaluate the expression to this problem 24 divided by (-4)+(-2) times (-5)
Tju [1.3M]

24/-30 would be the answer

8 0
2 years ago
Read 2 more answers
Other questions:
  • A box has a length of 5 cm, a width of 10 cm, and a height of 2 cm. the volume of the box is: 17 cm 17 cm3 100 cm 100 cm3
    6·2 answers
  • Which of the following is the complete list of roots for the polynomial function f(x)=(x^2+6x+8)(x^2+6x+13)
    13·1 answer
  • The sum of two consecutive even integers is 186. What are the two numbers?
    6·2 answers
  • What is: 6x^2-4x-10?
    5·2 answers
  • What is the shape of a cross section formed when a triangular prism is sliced by a plane vertical to its base?
    14·1 answer
  • Which function matches the<br> graph?
    7·1 answer
  • Explain how solving -7y &gt; 161 is different from solving 7y &gt; -161.
    14·1 answer
  • Julio ​says, "If you subtract 13 from my number and multiply the difference by -3​, the result is -54 ​." What is Julios​'s ​num
    13·1 answer
  • Can you help me pleaseee
    15·1 answer
  • Find the size of angle of cuz give your answer to 1 decimal place 13cm and 4cm
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!