A. 20 children and 10 adults
Equation 1: a + c = 30
Equation 2: 8a + c = 100
B. 10 children and 20 adults
Equation 1: a + c = 30
Equation 2: 8a – c = 100
C. 10 children and 20 adults
Equation 1: a + c = 30
Equation 2: 8a + c = 100
D. 20 children and 10 adults
Equation 1: a + c = 30
Equation 2: 8a – c = 100
hope it helped
Answer:
The answer is 15 months.
Step-by-step explanation:
p = $500
r = 6.5% or 0.065
A = $543
t = ?
The formula to be used here is :


Putting the values in formula we get:


This gives t = 1.3 years
In months it will be 1 year(12 months) + 3 months = 15 months.
Hence, the answer is 15 months.
Answer:
DB = 8
Step-by-step explanation:
Δ ADB and Δ BDC are similar so ratios of corresponding sides are equal, that is
=
, substitute values
= 
=
( cross- multiply )
DB² = 64 ( take the square root of both sides )
DB =
= 8
Thats how you answer that question