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77julia77 [94]
2 years ago
7

3(5x + 7) = 30 + 15x how many solutions

Mathematics
2 answers:
Xelga [282]2 years ago
8 0

Answer:

No solution

Step-by-step explanation:

3(5x+7) = 30 + 15x

DISTRIBUTE

15x+21 = 30+15x

15x-15x = 0

So no solution

Montano1993 [528]2 years ago
6 0

Answer:

Zero solutions

Step-by-step explanation:

3(5x + 7) = 30 + 15x,            Use the distributive property

15x + 21 = 30 + 15x,             The 15x from both sides cancel each other out

21 ≠ 30                                 No matter what value of x is, 21 will never equal 30

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Step-by-step explanation:

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6 0
2 years ago
What is -5/6 + -5/6? (its ment to be a fraction)
maks197457 [2]
The answer is:  " -5/3 " ;  or, write as:  " -1 ⅔ " .
_____________________________________________
Explanation:
_____________________________________________

   (-5/6) + (-5/6) = (-5/6) <span>− (5/6) ;  

------>  {since: "adding a negative" is the same a "subtracting a positive"} ; 

------> </span> (-5/6) − (5/6) = (-5 − 5) / 6  ;
  
                                  =   -10/6 =  (-10/2) / (6/2) ;
_____________________________________________________
                                  =   " -5/3 " ;  or, write as:  " -1 ⅔ " .
_____________________________________________________
8 0
3 years ago
This week, Sarah spent a total of 120 minutes studying. This total was 20 more
MrMuchimi

Answer:

She spent 25 minutes studying last week

Step-by-step explanation:

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4 0
3 years ago
#5
Colt1911 [192]

Answer:

1.5 seconds

Step-by-step explanation:

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6 0
2 years ago
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Answer:

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Step-by-step explanation:

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