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miskamm [114]
3 years ago
8

15 PPOINTSMrs. France, a seventh-grade math teacher, is grading papers. Three students gave the following responses to the same

math problem:
Student one: −1 /2

Student two: 1−/2

Student three: −(1/2)


On Mrs. France's answer key for the assignment, the correct answer is −0.5. Which student answer(s) is (are) correct and why?ANWER JUST EXPLAIN WHY PLZZZZZZZZZZZ
Mathematics
2 answers:
alina1380 [7]3 years ago
6 0

Answer:student 3

Step-by-step explanation:

emmainna [20.7K]3 years ago
6 0
1÷2 would equal a half or 0.5.And the 0.5 is negative on the answer keys so -1/2 and -(1/2) are correct. So student one and student three are correct.

hope this helps
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Can You Please Explain How To Do Problem #10? Thank you! :)​
alexandr1967 [171]

Answer:

separate and square both the top and bottom

the square of square root three is just 3 and the square of  3 (the bottom of the fraction) is 9

so now you have 3(i^2) /9

you can simplify this by three  and then i^2 is -1

you now have -1/3 and thats the final answer

6 0
3 years ago
5 more than 3 times a variable, x, is 23
Monica [59]

3x + 5 = 23

5 more than(addition) 3 times(multiplication) a variable(x) is(equals) 23

(you add 5 to 3x)

If you need to solve for "x", you need to isolate/get the variable "x" by itself in the equation:

3x + 5 = 23        Subtract 5 on both sides

3x + 5 - 5 = 23 - 5

3x = 18      Divide 3 on both sides to get "x" by itself

\frac{3x}{3} =\frac{18}{3}

x = 6

5 0
3 years ago
Describe a model that represents 3/3 x 4/4??
Oduvanchick [21]
They are both fractions, but 3/3 is 1 whole and 4/4 is 1 whole also.
so 1 whole times 1 whole equals 1
number form of my explanation:
3/3=1
4/4=1
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Describe complete!
4 0
3 years ago
What is a equations ?
myrzilka [38]
An equation says that two things are equal. It will have an equals sign "=" like this:

<span>7 + 2 = 10 − 1</span>
4 0
3 years ago
Read 2 more answers
Solve for x:<br> (x+4) = 7.(1 point)<br> 2<br> Ox=3<br> Ox=5<br> Ox=6<br> O x = 10
MArishka [77]

Answer:

A

Step-by-step explanation:

So we have the equation:

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And our answer is A.

And we're done!

5 0
3 years ago
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