Today, everything at a store is on sale. The store offers a 20% discount.
1 answer:
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We want to find the product:
.
By the
, we distribute 
over each of the three terms inside the parenthesis:
.
Multiplying the coefficients, and adding the exponents we get:
.
Answer:.
By the
Multiplying the coefficients, and adding the exponents we get:
Answer:
Given:
Total students = 60
Student passed = 85%
To find:
The number of students who failed and then convert it in %.
Solution:
We have,
Number of passed student = 85% of Total students
=
=
So, number of passes students is 51.
Number of students who failed = Total students - Passes students
=
=
So, number of students who failed is 9.
Therefore, 15% students fail in the test.