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
Answer:
The area is 768 square meters
Step-by-step explanation:
Use the Pythagorean theorem to find the width, then multiply the width by the length to find the area of the rectangle.
-$1240/4 months= -$310/month
Answer:
okay so its 25% C
25%= $12
100%= free
75= $4 12 dollars off
50= $8
every 25% is 4 dollars so
25= $4 off
50= $8 off
75= $12 off
100%= $16 off
Step-by-step explanation:
