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Alexandra [31]
3 years ago
14

Why do you need to find the common denominator to simplify

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0
Because then you can just add the tops like they are
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20. Bob had 7/8 pack of construction paper. If he used 1/5 of the paper to 5 points
tekilochka [14]

Answer:

3

Step-by-step explanation:

he has 7/8 paper divided by 1/5 paper it takes to make the paper plane, it equals 3.5. Three whole ones

4 0
3 years ago
Evaluate the problem -3-(+4)
Tcecarenko [31]

Answer:

-7

Step-by-step explanation:

-3 - (4) = ?

Remove parentheses:

=  -3 - 4

Subtract the numbers:

= -7

3 0
3 years ago
Read 2 more answers
Decide whether you would use a permutation, a combination, or neither. Next, write the solution using permutation notation or co
Zepler [3.9K]

Answer:

Permutation is used.

No. of arrangements = 1260

Step-by-step explanation:

Permutation is used for choosing & arrangement of  'r' out of 'n' objects, when sequence is important.

Total no. of alphabets in CORRECT = 7

C is repeated twice, R is repeated twice

So, Total No. of arrangements =   <u>7 !</u>

                                                   (2!)(2!)

= 5040 / 4

= 1260

5 0
3 years ago
Unsure on if I have the right answer worked out someone please say what you've got and how you've done it please
PilotLPTM [1.2K]
The answer is at 7:12 a.m, did you get that?


3 0
3 years ago
What is the solution to the given inequality?
SashulF [63]

1/2 - 1/4x ≥ -1/4

Combine 1/4x to get x/4:

1/2 - x/4 ≥ -1/4

Subtract 1/2 from both sides:

-x/4 ≥ -1/4 - 1/2

Simplify:

-x/4 ≥ -3/4

Multiply both sides by 4:

-x ≥ -3/4 * 4

-x ≥ -3

Multiply each side by -1 ( and since you are multiplying by -1, you also need to reverse the inequality sign)

Answer: x ≤ 3

5 0
3 years ago
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