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Afina-wow [57]
3 years ago
14

There is a total of 15 students in the park. Twelve of the students are riding their bikes. What is the ratio of students riding

bikes to those who are not riding bikes? *
A. 4:1
B. 3:5
C. 4:5
D. 5:4
Which one is right?
PLS HELP ME
Mathematics
2 answers:
Evgen [1.6K]3 years ago
6 0

Answer:

15 : 12 = 5 : 4

Step-by-step explanation:

We can simplify the ratio 15 : 12 by dividing both terms by the greatest common factor (GCF).

The GCF of 15 and 12 is 3.

Divide both terms by 3.

15 ÷ 3 = 5

12 ÷ 3 = 4

Therefore:

15 : 12 = 5 : 4

Feel free to give brianly!

9966 [12]3 years ago
6 0

Answer:

The answer is A.

Step-by-step explanation:

If you take the people riding bikes (12) to people not riding bikes (3), this would be 12:3 so you can divide both of them by 3. That leaves you with 4:1.

Hope this helps too!

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if the product of 4 and a number is decreased by 12, the result is twice the opposite of the number. Find the number. EXPLAIN PL
ELEN [110]
Answer:  The number is:  "2 " .
__________________________________________
Explanation:
__________________________________________
Write the expression; which is an equation, as follows:
__________________________________________
     " 4x <span>− 12 = 2(-x) " ;  in which "x" represents "the number for which we shall                                       solve" .
___________________________________________
Note:  

If the "number" = "x" ;  the "opposite of the number"  =  " -x " ;
</span>___________________________________________
Rewrite as:  " 4x <span>− 12 = -2x " ;
</span>_____________________________________________
     →  Add "12" ; & add "2x" ; to EACH SIDE of the equation:

                      4x − 12 + 12 + 2x = -2x + 12 + 2x ;

           to get:    6x  = 12  ;
____________________________________________________
 Now, divide each side of the equation by "6" ; 
     to isolate "x" on one side of the equation; & to solve for "x" ;
____________________________________________________
                         6x / 6  =  12 / 6 ;

                    to get:    x = 2 .
____________________________________________________
Answer:  The number is:  "2 " .
____________________________________________________
Let us check our answer, by plugging in "2" for "x" in our original equation:
_____________________________________________________
        →   " 4x − 12 = 2(-x) " ;

  Let us plug in "2" for "x" ; to see if the equation holds true; that is; if both side of the equation are equal; when "x = 2" ;

        →   " 4(2) − 12 = ?  2(-2) ?? 

        →    8 − 12 = ?  -4 ? ;
 
        →    -4 = ? -4 ??  Yes!
 __________________________________________________    
6 0
3 years ago
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Anastaziya [24]

Answer:

-3071/16

Step-by-step explanation:

Hope this helps, if you wrote it wrong or need help understanding please let me know!

4 0
3 years ago
How can $54,000 be invested part at 8% annual simple Interest and the remainder at 10% annual simple interest so that the intere
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Answer:

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Step-by-step explanation:

3 0
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Step-by-step explanation:

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3 years ago
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