Respuesta :
Answer:
He average for this semester so far is 81 points.
Step-by-step explanation:
Since his score is 10% lower this semester than last semester, then he present score is 100% from the prior semester minus 10%, which equals to 90% of the previous semester. In order to calculate that percentage we can use a rule of three as shown below:
90 points -> 100%
x points -> 90%
100*x = 90*90
x = 8100/100 = 81
He average for this semester so far is 81 points.
Answer:
81 points
Step-by-step explanation:
First semester . Aaron earned 90 points
Second sementer his average score is 10% lower which 10% of 90 points
To find 10%
10×90/100= 9 ,
10% of 90 is 9
Then subtract yhat from 90 points
90-9 =81
The average score is 81points
