Answer:
80
Step-by-step explanation:
Initial ratio:
Teachers to students
1 : 15
Ratio after:
Teachers to students
3 : 40
The number of students did not change, so we can make the students of the initial ratio and the students of the ratio after the same.
1 : 15 = 8 : 120
3 : 40 = 9 : 120
120 units = 1200
1 unit = 
Initial teachers = 8 units = 
Answer:
30 units²
Step-by-step explanation:
Area of a parallelogram = Base * Height
Substitute in known values
Area = 6 * 5
Area = 30 units²
Hope this helps :)
The expression that can be used to represent the list price of the smartphone is 5179.99 * (1- 25%) and the value is 3884.9925
<h3>What expression can be used to represent the list price of the smartphone? </h3>
The given parameters are:
Discount = 25%
Sales price = 5179.99
The expression that can be used to represent the list price of the smartphone is
Expression = Sales price * (1- discount)
So, we have:
Expression = 5179.99 * (1- 25%)
Evaluate
Expression = 3884.9925
Hence, the expression that can be used to represent the list price of the smartphone is 5179.99 * (1- 25%) and the value is 3884.9925
Read more about discounts at:
brainly.com/question/7459025
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Step-by-step explanation:
(X+3)(2x_9)
3x+12_12=90_12
3x=90_12
3x=78
X=26°
