Answer:
It would be zero.
Step-by-step explanation:
Let's for example look at this list : 123456789
The mean is 5, and the median would also be 5.
Answer:
Kalino would need to earn at least a 97 on his fifth test.
Step-by-step explanation:
The average is calculated by adding up the amounts earned on each test and dividing by the total number of tests. In this case, the score for the last test is not known, but the expected average of 90 points is, so we can set up an equation to solve for the unknown test value:
'x' represents the score of the fifth test. Using inverse (opposite) operations and doing the same operation to both sides of the equation, we can first multiply both sides by 5:
x 5 = 90 x 5
353 + x = 450, now subtract 353 from both sides: 353 -353 + x = 450 - 353
x = 97
This is a mixture problem.
mass1 * karat1 + mass2*karat = total mass * total carat
Total mass = 200g.
Total karat = 14.
Let the 9 karat gold to be mixed be x. The 18 karat would weight (200 - x). Since the total = 200g.
9*x + 18*(200 -x) = 14*200
9x + 18*200 - 18*x = 14*200
18*200 + 9x - 18x = 14*200
3600 - 9x = 2800
3600 - 2800 = 9x
800 = 9x
9x = 800
x = 800/9
x ≈ 88.89
Therefore 88.89 grams of 9 karat gold must be mixed.
Answer:
1 and 2
Step-by-step explanation:
let the consecutive integers be n and n + 1 , then
6n = 3(n + 1)
6n = 3n + 3 ( subtract 3n from both sides )
3n = 3 ( divide both sides by 3 )
n = 1
and n + 1 = 1 + 1 = 2
The integers are 1 and 2
Answer:
Ye
Step-by-step explanation: