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
vladimir2022 [97]
3 years ago
9

What is the reasonable estimate for the problem 3 3/4 -2/5

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0

Answer:

-2

Step-by-step explanation:

kramer3 years ago
4 0

A reasonable estimate could be turning 2/5 into 2/4 (1/2) then subtracting it to give you 3 3/4 - 2/4 = 3 1/4.


To prove this estimate is reasonable, the actual answer to the problem is 3 7/20, which is pretty close to 3 1/4! (Could be written as 3 5/20)

You might be interested in
28. sylvia researched changes in the deer population in her state's parks during her lifetime
kifflom [539]

Using an exponential function, it is found that it will take 24 years for the current population of 4800 deer to reduce to 600.

<h3>What is an exponential function?</h3>

An exponential function is modeled by:

y = ab^x

In which:

  • a is the initial value.
  • b is the rate of change, as a decimal.

In this problem, considering the initial value of 4800, and that the population halves every 8 years, the equation is given by:

A(t) = 4800\left(\frac{1}{2}\right)^{\frac{t}{8}}

The population will be of 600 when A(t) = 600, hence:

A(t) = 4800\left(\frac{1}{2}\right)^{\frac{t}{8}}

600 = 4800\left(\frac{1}{2}\right)^{\frac{t}{8}}

\left(\frac{1}{2}\right)^{\frac{t}{8}} = \frac{600}{4800}

\left(\frac{1}{2}\right)^{\frac{t}{8}} = \frac{1}{8}

\left(\frac{1}{2}\right)^{\frac{t}{8}} = \left(\frac{1}{2}\right)^3

Hence:

t/8 = 3.

t = 24.

It will take 24 years for the current population of 4800 deer to reduce to 600.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

3 0
2 years ago
a child lifts a 5.0-newton toy to a height of 0.50 meters. how much work is done on the toy? 0.0 j 2.5 j 4.5 j 10 j
natta225 [31]
Since work = force * distance, the answer would 5*.5, which is 2.5 J
8 0
4 years ago
Read 2 more answers
Part A: Find the LCM of 5 and 12. Show your work. (3 points)
diamong [38]

Answer:

Part A: 60

5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60.

12, 24, 36, 48, 60.

---------------------------------

Part B: 9

81 / 72 = 9

----------------------------------

Part C: 9 (8 + 9)

---------------------------------

GCF of 72 and 81 is 9...

Divide 72 by 9 and get 8.

Divide 81 by 9 and get 9.

To check multiply 9 with 8, and multiply 9 by 9.

5 0
3 years ago
What is the justification for each step in the solution of the equation?
Marrrta [24]
4(4x + 6) - 7 = 77 - 4x......distribute thru the parenthesis
16x + 24 - 7 = 77 - 4x ...simplify
16x + 17 = 77 - 4x ...addition property of equality....add 4x to both sides
16x + 4x + 17 = 77 ...subtraction property ...subtract 17 from both sides
16x + 4x = 77 - 17...combine like terms
20x = 60 ....division property....divide both sides by 20
x = 60/20
x = 3
7 0
3 years ago
Read 2 more answers
Jenny has saved $3,800 over the last 12 months. She saved either $250 or $350 a month. During the 12 month period, how many time
kari74 [83]
 5 months for it 5 times 250= 1250 
7 0
4 years ago
Read 2 more answers
Other questions:
  • Find the sample standard deviation with the data 0.62, 1.05, 0.58, 1.17, 1.04, 1.37, 1.32, 0.67, 1.25 1.38, 0.86
    11·1 answer
  • Can someone check if what I did in number 35 so far is correct and tell me what what to put for the last part of number 35
    10·1 answer
  • 1.5[3(14.5+7)-3]-7.4
    13·1 answer
  • A high school has 900 students. In a
    11·1 answer
  • The perimeter of a rectangle is 72 meters. the length of the room is twice its width. what are the dimensions of the rectangle?
    6·1 answer
  • The graph of a function never has two different points with the same x- cordinate because?
    8·1 answer
  • 6-2x=6x-10x+14 what is the value of x
    11·2 answers
  • I dont know how to do this question
    10·1 answer
  • After traveling 345 miles the
    7·2 answers
  • Horizontal translation 5 unitss left
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!