ANSWER

EXPLANATION
We want to solve the trigonometric equation

We group like terms to obtain,

Divide both sides of the equation by 3 to get,

We can reciprocate both sides to get,

We simplify the right hand side to get,

Since the tangent ratio is negative, it implies that it is either in the second quadrant or fourth quadrant.
In the second quadrant,


In the fourth quadrant,


Find out how many liters are used in the old toilet in a year;
4×27= 108 l (in a day)
365×108= 39420 liters (in a year)
Find out how many liters are used in the new toilet;
4×6=24 (in a day)
24×365=8760 l (in a year)
Find the water saved; 39420-8760
= 30660 l saved.
Hope I helped :)
1) 5 pancakes
2) 10 pancakes
3) 4 eggs
4) 40 pancakes
Answer: let the number be n
so we have (n/2+10)-6
then we have 11.5-6 which is 5.5.
Step-by-step explanation: