If 9 of the sparrows is 45% of the birds in the backyard, 9/x = 45/100.
Cross multiply to get 9 * 100 = 45x; simplified is 900 = 45x or 20.
This means that there are 20 birds in the backyard. You can check this by dividing 9/20 which equals 45%
$6 for each popcorn and $4 for each soda
Answer:
The dependent variable is A
The independent variable is w
Step-by-step explanation:
Given
Required
Identify the variables
In
The value of w is independent of the value of A.
In other words:
A derive its own value from w; by multiplying 25 and w.
Take for instance:
The value of A would be:
Hence:
The dependent variable is A
The independent variable is w
I believe the answer is B.) 120 because 170 is much wider than the CFE so it needs to be lower than that but not to much lower which is where 120 would come in.
Answer:
x = 2.56, y = -2.63
Step-by-step explanation:
I first multiplied the second equation by two, getting
4x-6y = 26
I then subtracted the equations
4x+2y = 5
- 4x-6y = 26
--------------------
8y = -21
y = -2.63
with y solved, I plugged it into the second equation to get x:
2x-3(-2.63) = 13
2x+ 7.89 = 13
2x = 5.11
x = 2.56
I hope this helped! ;D
