Whats 2feet times 15 inches and how do you get the answer?
2 answers:
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Answer:
1 haircut = 47 dollars
1 colouring = 98 dollars
Step-by-step explanation:
Let be equal to the cost of 1 haircut.
Let be equal to the cost of 1 colouring treatment.
<u>1) Form equations</u>
Equation 1: 3 haircuts + 1 colour = 239 dollars
⇒
Equation 2: 2 haircuts + 1 colour = 192 dollars
⇒
<u>2) Solve the system of equations</u>
Subtract equation 2 from equation 1 to cancel out y (elimination)
-
⇒
Therefore, Natalie charges 47 dollars for 1 haircut.
Plug x back into one of the equations to solve for y
Subtract both sides by 94
Therefore, Natalie charges 98 dollars for 1 colouring treatment.
I hope this helps!
There two forms to write an equation in; slope-intercept form, <em /><em>y</em> = <em>mx</em> + <em>b</em>, where <em>m</em> is the slope and <em>b</em> is the <em>y</em>-intercept; and point-slope form, which is given by 
, where <em>m</em> is the slope and (<em>x</em>₁, <em>y</em>₁) is a point on the line. Given the information and instructions you have I assume you need point-slope form. For #1, you have <em /><em>m</em> = 2 and point (3, 5). Substitute these values in:
If you need slope-intercept form, you start by using the distributive property on what you just wrote:
Now cancel the 5 to isolate <em>y</em>:
If you need slope-intercept form, you start by using the distributive property on what you just wrote:
Now cancel the 5 to isolate <em>y</em>: