You have to add it and then there should be a layout button and you have to press that button
Answer: 1.5 : 1
Explanation:
The average of 92 marks for the test is a weighted average of the proportion of students in the class.
Assume boys are in the proportion, x.
(90 * x) + (95 * (1 - x)) = 92
90x + 95 - 95x = 92
-5x = 92 - 95
-5x = -3
x = -3/-5
x = 0.6
Boys are 0.6 of the class
Girls are:
= 1 - 0.6
= 0.4
0.6 : 0.4
1.5 : 1
Catherine's team is using the concept of on-off device by using a single transmitter to reach multiple receivers.
<h3>What is a device?</h3>
It should be noted that a device simply means something that is adapted for a particular purpose especially an electronic equipment.
In this case, Catherine's team is using the concept of on-off device by using a single transmitter to reach multiple receivers.
Learn more about device on:
brainly.com/question/24786034
We are on the lithosphere