Answer:
85, 68, 51
Step-by-step explanation:
Average: The sum of all the numbers divided by the number of numbers
If the ratio of the scores is 5 : 4 : 3, let's just set it as 5x : 4x : 3x
Then using the definition of an average, we can write this equation.
(5x + 4x + 3x) / 3 = 68
Multiply both sides by 3.
5x + 4x + 3x = 68 * 3
Simplify.
12x = 204
x = 17
Now, substitute x = 17 into the original scores (5x, 4x, and 3x)
5x = 5 * 17 = 85
4x = 4 * 17 = 68
3x = 3 * 17 = 51
Just in case, let's check this answer. Find the average of the 3 test scores.
(85 + 68 + 51) / 3 =
204 / 3 = 68
Thus, the answers are correct
C is the correct answer I worked it out
Answer:
x 
12
[12,∞]
Step-by-step explanation:
$34.00 - pants.
$16.00 ×2 = $32.00 - shirts.
$24.00×2= $48.00 - shoes.
$34.00+ $32.00 + $48.00 = $114.00
$200.00 - $114.00 = $86.
but if you count $35 then he had , $121
Arithmetic sequence
Explanation
An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence
Step 1
Let
so, the difference is always the same, 2
Hence, the answer is a Arithmetic sequence
