Answer:
A.
Step-by-step explanation:
Add theses functions
jennifer spent $131 on shirts. fancy shirts cost $28 and plain shirts cost $15. if she baught a total of 7 shirts, how many of e
1 answer:
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Answer:
x - 2y = - 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 2x + y = 3 ( subtract 2x from both sides )
y = - 2x + 3 ← in slope- intercept form
with slope m = - 2
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
=
, thus
y = x + c ← is the partial equation
To find c substitute (5, 4) into the partial equation
4 = + c ⇒ c =
y = x +
← in slope- intercept form
Multiply through by 2
2y = x + 3 ( subtract 2y from both sides )
0 = x - 2y + 3 ( subtract 3 from both sides )
- 3 = x - 2y , that is
x - 2y = - 3 ← in standard form
Answer:
cost per minute is 0.04
Step-by-step explanation:
Unit rates defined as the rates are expressed as a quantity of 1 such as 2 feet per second or 5 miles per hour they are called unit rates.
Given: Costs = $ 30 a month
In a month of may she used cellphone 12.5 hours.
First convert 12.5 hours in minute.
Use conversion: 1 hour = 60 minutes
then, 12.5 hours =
to find the cost per minute.
by definition;
unit rate(cost per minute ) = cost per minute.
therefore, her cost per minute is 0.04