Answer:

Step-by-step explanation:
Given



Required
Determine the number of adults
First, we need to calculate the number of children

Given that: 
Substitute 170 for Girls in 

Convert to fraction

Cross Multiply

Divide both sides by 2



So, the number of children are:



Next, we calculate the number of people in the cinema.

Substitute 765 for Children

Make People the subject.



If 3/5 are children, then 2/5 are adults.
So:




Answer:
5.1
Step-by-step explanation:
you need to work backwards.
so do 17.5 + 8 then divide by 5 to get 5.1
i hope this helps :)
It took her 6 days. 2 and 2/3 times 6 equals 16
Answer:
It's -8.
Step-by-step explanation:
The 5 in the f(5) is the 5 in the x column. Then you just find its value, which is -8
log_8(2) + log_8(4x^2) = 1
(adding logs of the same base is multiplying the insides of each of the logs)
log_8(8x^2) = 1
(the base raised to the exponent is equal to the inside of the logarithm)
8^1 = 8x^2
8 = 8x^2
1 = x^2
x = -1; x = 1