60
30 *2
15 * 2 * 2
5 * 3 * 2 * 2
I found this online, hope it helps
Just follow these steps:
Multiply normally, ignoring the decimal points.
Then put the decimal point in the answer - it will have as many decimal places as the two original numbers combined.
The
probability that the student has a part-time job, given that they have a cell phone is 5/8
<h3>What is probability</h3>
Probability is the likelihood or chance that an event will occur.
Given the following parameter:
- Total student = 80%
- Part-time jobs = 45%
- Those with both a cell phone and a part-time job = 30%
Student will cellphone only = 80 - 30 = 50%
The
probability that the student has a part-time job, given that they have a cell phone is 50/80 = 5/8
Learn more on probability here: brainly.com/question/25870256
Given:
A prism with height 5 cm and equilateral triangular base with side 2 cm.
To find:
The total surface area of the prism.
Solution:
Area of an equilateral triangle is:
Where, a is the side length.
Putting 
, we get
The base and top of the prism are congruent so their area must be equal.
The lateral surface area of the prism is:
Where, P is the perimeter of the base and h is the height of the prism.
The lateral surface area of the prism is:
Now, the total surface area is the sum of areas of bases and lateral surface area.
Therefore, the total surface area is 33.46 cm².
<span>-34-r=-7(8r-3)
- 34 - r = - 56r + 21
- r + 56r = 21 + 34
55r = 55
r = 55/55
r = 1</span>
