Answer:
There is a total 50 questions.
Step-by-step explanation:
Let x = total questions in the exam
Since 82% of the test was scored correctly, that means 18% of the student's exam was scored incorrectly.
With this information we can write:
(Given that the student made 9 mistakes)
(divide 18% on both sides)
∴ There was a total of 50 questions in the examination.
Answer:
2/12
Step-by-step explanation:
Because there are 6 tile total but he wants two put 2 numbers out of the bag twice..... you get the 12 because he pulls a number out twice and since he has 6 and then does it again it adds to 12 so the answer would be 2/12
10 x 25 = 250, well 20 x 25 is just double that, its 10 doubled x 25 so he probably just added it up. repeated addition really helps with times tables.
Answer:
Step-by-step explanation:-227 is in The sequence
13,7,1,-5,-11,.....
First term=a=13
Common difference=d=7-13=-6
Checking if -227 is in The sequence
using the formula
Tn=a+dx(n-1)
-227=13+(-6)x(n-1)
-227=13-6n+6
collect like terms
6n=13+6+227
6n=246
Divide both sides by 6
6n/6=246/6
n=41
Therefore -227 is the 41ist term Of The sequence
