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Elan Coil [88]
3 years ago
13

Write an inequality for the sentence: twice a number, decreased by the quotient of that number and 2, is at least 12

Mathematics
1 answer:
Rudiy273 years ago
3 0
For the answer to the question above,  If you've noticed, the statement mentioned "a number". Let's assign x to be the number. The first statement is twice a number (2x). Then, decreased by the quotient of that number and 2 (-x/2). Lastly, the statement at least 12 is written as >12. 
So the answer is
2x - (x/2) >12
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horsena [70]
He fish weighs 7 x 8 ounces = 56 ounces
7 0
4 years ago
what percent of the students who spend less than 4 hours a week on screens reported a grade average above 80? round your answer
kifflom [539]

Answer:

okay so 400%

Step-by-step explanation: Here's why so basically 80 divided by 4 is 20 and 20 rounded to the nearest tenth is 4 so 4 turned into a percentage is 400%. Sorry if I am incorrect.

8 0
2 years ago
20 points! i need somebody to explain this to me for D + 4 < 7.
Veronika [31]

Assuming there is no line under the "less than" sign, this means D + 4 < 7 solves to D < 3, which is what I'm assuming you got. This is found by subtracting 4 from both sides.

Writing D < 3 means D is some number less than 3. A solution is just that. You cannot pick 3 itself because 3 is not less than 3. But you can pick something like 2 since it is less than 3.

D+4 < 7

2+4 < 7 ... replace D with 2

6 < 7 ... true

Or D could be 1

D+4 < 7

1+4 < 7

5 < 7 .... true

and so on.

8 0
3 years ago
Find dy/dx and d2y/dx2, and find the slope and concavity (if possible) at the given value of the parameter. (If an answer does n
ella [17]

Answer:

The slope of the function is  ²/₃ and since the second derivative is zero, the concavity doesn't exist.

Step-by-step explanation:

Given;

x = 6t

y = 4t - 3

point t = 4

\frac{dy}{dx} = (\frac{dy}{dt} )/(\frac{dx}{dt} )=\frac{\frac{dy}{dt} }{\frac{dx}{dt}} \\\\\frac{dy}{dt}  = 4; \frac{dx}{dt} = 6\\\\\frac{dy}{dx} =\frac{4}{6} = \frac{2}{3}

The slope of the function is  ²/₃

take the second derivative of the function;

the second derivative will be zero since the first derivative is a constant value.

\frac{d^2y}{dx^2} = 0

Since the second derivative is zero, the concavity doesn't exist.

4 0
4 years ago
A store donated 2 1/4 cases of crayons to a day care center. Each case holds 24 boxes of crayons; each box holds 8 crayons. How
gladu [14]
C. Because 8x24=192 and then you have to do 192x2.25 which gives you the answer 432!
7 0
4 years ago
Read 2 more answers
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