To solve this, we need to figure out how many times 9% goes into 100%.
100% / 9% = 11.111
Since <u>9% of the pizzas equaled 27 pizzas</u>, we can <u>multiply 27 by the amount 11.111</u> to get the total number of pizzas (100%).
27 * 11.11 = 299.997, rounded to the nearest whole number is 300 Pizzas
Answer:
2 my nigher
Step-by-step explanation:
Your equation is
7h + 1.50d = Colton's total earnings
We just need to plug in our known numbers for the variables in the equation.
The given numbers are that h=15 and d=8
7(15) + 1.50(8) = Colton's total earnings
Now we just need to simplify this equation by multiplying out the numbers on the left side of the equation.
105 + 12 = Colton's total earnings
Now we add the numbers on the left side of the equation to find Colton's total earnings.
117= Colton's total earnings
Therefore, after working 15 hours and making 8 deliveries, Colton will have earned $117.
We will start off working on the right hand side.
<span>cot x - tan x </span>
<span>= [cos x / sin x] - [sin x / cos x] </span>
<span>= [(cos x)^ 2 - (sin x)^2] / [sin x cos x] </span>
<span>This is where it gets a bit tougher if you do not have your formula list with you. </span>
<span>(cos x)^ 2 - (sin x)^2 = cos(2x) </span>
<span>sin 2x = 2 sin x cos x </span>
<span>Note that by arranging the second formula, we will have sin x cos x = (1/2) sin 2x </span>
<span>Hence, we will get: </span>
<span>[(cos x)^ 2 - (sin x)^2] / [sin x cos x] </span>
<span>= [cos 2x] / (1/2)[sin 2x] </span>
<span>= 2[cos 2x] / [sin 2x] </span>
<span>= 2cot 2x </span>
