We apply our knowledge in variation.
The solution can be seen in the photo
Given:
Jake bought 3 drawing pens for $8.07.
Each pen costs the same amount.
To find:
How much did he spend for one pen?
Solution:
Let x be the cost of each pen. Then
Cost of three pens = 3x
Jake bought 3 drawing pens for $8.07.

Divide both sides by 3.


Therefore, he spend $2.69 for one pen.
Answer:
The slope of this line is -4
Step-by-step explanation:
To find the slope, you need to solve the equation for y.
4x + y = -9
y = -4x - 9
The slope in this form is always the coefficient of x, making it -4.
Step-by-step explanation:
any one free out
sin theta equals to cos theta then the value of sin 2 theta