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vazorg [7]
2 years ago
9

Which expression is equivalent to 3d - d + 4 + d

Mathematics
2 answers:
Sveta_85 [38]2 years ago
3 0

Answer:

b

Step-by-step explanation:

maksim [4K]2 years ago
3 0
D

Explanation: 3d - d + 4 + d
Collect like terms
3d - d + d + 4
- d + d = 0
Answer = 3d + 4
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Represent the following sentence as an algebraic expression, where "a number" is the letter x. You do not need to simplify.
zloy xaker [14]

Answer:

The statement, one fifth of the square of a number is written as

\frac{1}{5}  {x}^{2}

Hope this helps you

6 0
2 years ago
Find the difference 9 1/3 - 2/3
olga2289 [7]
Answer:  9 1/3 - 2/3 =  8  2/3 .
___________________________________

Note:  If the answer were "8 1/3" ; 

then:  "8 1/3 + 2/3 =? 9 1/3 ? "  

      → "8 1/3 + 2/3 = 8  3/3 = 8 + 1 = 9 = only "9" ;
____________________________________________
So the answer has to be MORE than "8 1/3"

Try "8 2/3"  → "8 2/3 + 2/3 =? 9 1/3?" ?? ; 
        
                  → "8 2/3 + 2/3 = 8 4/3 = 8 + 1 1/3 = 9 1/3 " → Yes!
_________________________________________________
 So, the answer is:  "8  2/3" .
_________________________________________________
Another method:
_________________
Given the problem:  "<span>9 1/3 - 2/3 " ;
___________________________________
Note that:  "2/3 = 1/3 + 1/3"
__________________________________
So, "</span><span>9 1/3 - 2/3 = 9 1/3 - (1/3 + 1/3) = 9 1/3 - 1/3 - 1/3 = ?
 ________________________________________________
   Start with:  "</span>9 1/3 - 2/3" = 9.  Then 9 - 1/3 = 8 3/3 - 1/3 = 8 2/3.
<span>______________________________________________________
</span>Another method:
____________________________
Given the problem:  
____________________________
  "9 1/3 - 2/3 = ?? " ;
____________________________
  Convert "9 1/3" into "28/3" ;  ("3*9 = 27"); ("27+1=28");
                                           (The "3" comes from the "3" in the: "1/3" portion.)
_________________________________________________________
  So, we rewrite as:  
_____________________________________
   28/3 - 2/3 = (28 - 2) / 3 = 26/3 ; or, 8  2/3 .
__________________________________________________
3 0
3 years ago
What is the square root of negative 100?
Kamila [148]
The square root of negative 100 can be dissected step by step. The square root of 100 is 10 however there is no such thing as square root of something negative, thus the imaginary notion is applied. square root of -1 is equal to i .Hence the answer to this problem is 10 i.
4 0
2 years ago
Read 2 more answers
What is 47%as a fraction
ivolga24 [154]

Answer:

47/100

Step-by-step explanation:

47 -> 0.47      47/100 = 0.47

6 0
3 years ago
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The cost of a bag of 8 peaches is $16. You could also buy individual peaches for
Veronika [31]

Answer: The peaches sold in bags

Step-by-step explanation:

16/8=2 This means that a single peach in the bag of peaches is worth $2. This is $0.15 cheaper than buying a single peach

The unit rte for a single peach is $2.15

The unit rate for a single peach in the bag of peaches is $2

5 0
3 years ago
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