Step-by-step explanation:
A) Let X= the number of weeks 46 times 3/4 = 72. And 135+72 x >_ 580
B) 135+72 x >_ 580. 580-135. 72/72 >_ 445/72
x >_ 6.2
She must work a minimun of 7 weeks to get $580.
Answer: OPTION B.
Step-by-step explanation:
Given the equation 
you can find an equivalent equation by simplifying it.
You need to remember the multiplication of signs:
Now you can apply the Distributive property:
Simplifying the equation, you get:
You can observe that this equivalent equation matches with the equation provided in option B.
X + 7y = 180 - - - - - a
4x + 2y = 180 - - - - - - b
Multiple a by -2 and b by 7
-2x - 14y = - 360
28x +14y = 1260
Add the above equations:
26x = 900
The value of x is:
x = 900/26 = 34.6°
The value of y can be obtained by replacing the value of x in equation a
34.6 +7y = 180
7y = 180 - 35.6
y = 20.6°
Hope that helps you
Answer:
y = 3x - 3
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 )
Given
y - 3x = 4 ( add 3x to both sides )
y = 3x + 4 ← in slope- intercept form
with slope m = 3
Parallel lines have equal slopes, thus
y = 3x + c
The line crosses the y- axis at (0, - 3 ) ⇒ c = - 3
y = 3x - 3 ← equation in slope- intercept form
