Answer:
The solution is 9.01.
Step-by-step explanation:
To prove that 9.1 isn't the solution we have to plug 9.1 into the equation. By replacing n with 9.1 we get 2.7 which isn't equal to 2.61.
To find the solution we must add 6.4 to both sides of the equation.
Use a sum or difference identity to find the exact value of cos without a calculator. to work this, we look at the 75° to see if its the sum or difference of any angles from our reference triangles.now plug in values from your reference triangles.
15 x 0.20 = 3
15-3 = 12
The sale price of the shirt will be
$13
Thats on cuh
Answer:
Step-by-step explanation:
Let's say that this "certain number" is x. If we are adding that "certain number" to 36, then x+36 equals something. That "certain number," referred to as "it" in the second part, then also must be multiplied by 4 (4x) to get the same result as x+36, therefore:
x+36=4x
-x -x
36=3x
3 3
12=x
Check yourself:
If 12 is added to 36, it equals 48.
If 12 is multiplied by 4, the result is 48 as well.