Answer:
Step-by-step explanation:
<u>Equations
</u>
The relation between the number thought by Ann (N) and the final result (R) can be expressed as
So if for example, Ann thought in the number N=12, then
If we know the value of R, it's easy to find back the value of N by solving the equation
subtracting 7 on each side
Dividing by 5
So, if Ann tells Jim that R = 52, he can guess her number is
Ratio: 4:3
96/4 bird houses shows the number to connect the ratios, you get 24. Then do 24 times 3 ( because of 3 days ) to get 72 days.
Answer: 72 days
Answer:
Step-by-step explanation:
<u>Area of the regular polygon:</u>
- A = Pa, where P- perimeter, a- apothem
a. <u>Side length is:</u>
- s/2 = √13²-12² = √25 = 5
- s = 10 units
<u>Perimeter is:</u>
b. <u>Area is:</u>
the answer is y=2x-3
You can look at my work if you really need to