Final answer:
The cost of 10 mangoes is $15.00
Step-by-step explanation:
To find the cost of 10 mangoes, we need to determine the cost per mango first. Since a dozen of mangoes costs $18, we divide $18 by 12 to find the cost per mango. $18 ÷ 12 = $1.50 per mango.
Now, we can calculate the cost of 10 mangoes. We multiply the cost per mango ($1.50) by 10. $1.50 x 10 = **$15.00**.
Therefore, the cost of 10 mangoes is $15.00.