Mark is 20. 55 - 15 = 40, 40 / 2 = 20. Mark is 20
Answer:
92
Step-by-step explanation:
x= the ideal mark for his third test
100 + 63 + x/3 = 85
163+x=85x3
163 + x = 255
x=92
He would need to get at least a 92 to have the 85 average.
Answer:
True
Step-by-step explanation:
We know that The triangle inequality states that the sum of the two sides of the triangle is always greater than the third side.
Here given that two sides of the triangle are 7 and 10
Let the third side be x
Here a = 7 , b = 10 , c = x
According to the triangle inequality
a + b > c
7 + 10 > x
x < 17
Also c + b > a
x + 10 > 7
x > -3
Also a + c > b
7 + x > 10
x > 3
Combining all the above results we get
3 < x < 17
All the values of x in the above region forms a triangle
Given x values lies in the region so they form a triangle
You would take the beginning number and subtract the second number then you would take the number you got and divide it by the first number.
1420-1022=y then y/1420
Answer:
Total combination = 180,180
Step-by-step explanation:
It is a combination based problem.
So,
Total people = 13
Group = 3,6,2,2
So,
For 6 people
13C6= 1,716
For 3 people
7C3 = 35
For 2 group of 2 people
(4C2)/2 = 3
Total combination = 1,716 × 35 × 3
Total combination = 180,180
