A math class has 4 girls and 1 boy in the seventh grade and 5 girls and 5 boys in the eighth grade. The teacher randomly selects
1 answer:
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Answer:
15%
Step-by-step explanation:
Set up a proportion.
Cross-multiply.
Divide both sides by 90.
The discounted price is 85% of the regular price so the
discount is 15%.
To solve this problem you must apply the proccedure shown below:
If , you have that:
Because and
Therefore, as you can see, the answer is: