Answer:
Step-by-step explanation:
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The total cost of a dress,including tax, was $121.37. If 6% tax was added to the sale price, what was the sale price before taxe
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Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Rearrange - 4x - 5y = - 4 into this form
Add 4x to both sides
- 5y = 4x - 4 ( divide all terms by - 5 )
y = - +
← in slope- intercept form
with slope m = -
Parallel lines have equal slopes, thus
y = - x + c ← is the partial equation
To find c substitute (3, - 2) into the partial equation
- 2 = - + c ⇒ c = - 2 +
=
y = - x +
← in slope- intercept form
(-2,7) and (14,21)
Find the slope by using the formula
Plug in the numbers.
Write it in point slope form first
y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7
y = 7/8x + 8.75
Our final equation would be: <span>y = 7/8x + 8.75</span>
Find the slope by using the formula
Plug in the numbers.
Write it in point slope form first
y - y1 = m(x - x1)
y - 7 = 7/8(x - -2)
y - 7 = 7/8x + 1.75
+ 7 +7
y = 7/8x + 8.75
Our final equation would be: <span>y = 7/8x + 8.75</span>