The percentage of questions Matt has answered is 80 %
What is Percentage?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, %
Given data ,
Number of questions Matt has answered = 20
Total number of questions = 25
Let the percentage of questions Matt has answered = x
Number of questions Matt has answered / Total number of questions = x %
Percentage of questions Matt has answered = ( Number of questions Matt has answered / Total number of questions ) / 100
x = ( 20 x 100 ) / 25
x = 20 x 4
x = 80 %
Hence, the percentage of questions Matt has answered is 80 %
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Answer:
Multiply the second equation by −2 to get −8x − 6y = −30.
Step-by-step explanation:
we have
----> first equation
----> second equation
Solve by elimination
Multiply the second equation by -2 both sides
---> equivalent second equation
Adds first equation and the equivalent second equation
Find the value of y
substitute the value of x in any of the equation
the solution of the system is the point (3,1)
Answer: 59.85
Step-by-step explanation:
This is the anwser because
60*.05=3
60-3=57
57*.05=2.85
57+2.85=59.85