Let the full marks be represented by = x
As given, 80% of x is 75
So,
x=
x=93.75
Hence, full marks is 93.75
We can check also- =75
You roll a number cube and flip a coin. What is the probability of rolling a number less than 5 and flipping heads? Write your a
1 answer:
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Answer:
36:85
Step-by-step explanation:
Given the right angled triangle as shown in the attachment, the cos of angle N can be gotten by simply using the CAH method in SOH CAH TOA.
According to CAH
Cos∠N = Adjacent/Hypotenuse
Hypotenuse is the longest of the triangle |ON| = 85
Since the opposite side to ∠N is 77, the third side will be the Adjacent side.
Adjacent side will be |NP| = 36
Therefore:
Cos∠N = 36/85
The ratio that represents the cosine of ∠N is 36:85
