Step-by-step explanation:
I can read your mind you know
just ask me how
and see the magic
think of any number,
add it by 3 then by 5 then by 1.
multiply it by two
divide it by two
subtract the first number you thought of from your current number
your answer will be 9
I'm I correct ?
Answer:
Explanation:
The <em>average</em> is the mean. It is calculated adding all the values and dividing the sum by the number of values (data):
For the students who took the test the day before you, you can write:
Where n is the number of students who took the test first.
Thus, when the average was 69 the equation is:
When you take the test, the n + 1, the new average is 70, and the sum of the scores raised in 95 points:
Now you have a system of two equation and two unknowns, so you can solve it.
Clear the sum of the scores from the first equation:
Subsitute in the second equation:
Solve for n:
Thus, when you include your self the number of students who took the test was 25 + 1 = 26.
Answer:
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
180+60=240
60/240=0.25
0.25*100
25%
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16 inches, and 10 inches tall.
So because, they are asking the largest image for the photograph,
so 8 * 2 = 16
and 10 * 2 = 20 but 20 can't go into 12.
So the answer?
16 inches and 10 inches tall.