Answer:
Its C
Step-by-step explanation:
Just took the test
Answer:
3/5
Step-by-step explanation:
avg in A = 41
avg in B = 38
combined avg of A and B = 36
Let a = number of people in group A.
Let b = number of people in group B.
The total number of people = a + b.
The sum of all ages in group A is 41a.
The sum of all ages in group B is 36b.
The sum of all ages in the combined group A and B is 38(a + b).
41a + 36b = 38(a + b)
41a + 36b = 38a + 38b
3a = 2b
a/b = 2/3
a/b + 1 = 2/3 + 1
a/b + b/b = 2/3 + 3/3
(a + b)/b = 5/3
b/(a + b) = 3/5
The answer is C! I took the test and passed
<span>What is the mode of the data set?: 61 (It's the one that repeats most often.)
Mean: 141.5 to find the mean add all of the the numbers then divide by how many numbers are there.
</span>
<span> | 3 - 6x | = 15
3-6x = 15
-6x = 15 -3
-6x = 12
x = -2
</span>-(3-6x) = 15
-3+6x = 15
6x = 15 +3
6x = 18
x =3
solutions x = -2 and x = 3
