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Novay_Z [31]
3 years ago
15

The ratio of shoes sold to sandals was 8:5. If there were 72 sandals sold how many shoes were sold?

Mathematics
1 answer:
ozzi3 years ago
6 0
The answer is: 45 sandals.
_________________
Explanation: 
_________________
The ratio of:
__________________
shoes : sandals = 8:5
_____________________
We want to know how many SHOES were sold; if 72 sandals were sold.
__________________________
→ 8:5 = x:72 ; in which "x" = number of shoes were sold;
____________________
We can write this as:
___________________
→ 8 / 5 = x / 72; 
___________________
→ Cancel the "8" to a "1"; and change the "72" to a "9"; since "8 * 9 = 72" ;
______________________
→ and rewrite as:  1 / 5 = x / 9 ; 
____________________________
→ SInce "1/5" = 0.2 ; write as: 0.2 = x / 9 ↔  (0.2) x = 9 ;
__________________________
→ Now, divide EACH side of the equation by "(0.2)" ; to isolate "x" on one side of the equation; and to solve for "x' ; 
___________________________________
→ (0.2) x / (0.2) = 9 / (0.2) ; → to get: 45.
_____________
The answer is: 45 sandals.
________________________
(Note: Ratio of 45 shoes to 72 sandals)
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