Answer:
(a) 
(b)The boiling point of water in Celsius scale is 100°C.
(c)The setting in Celsius scale is 26.7°C.
Step-by-step explanation:
Given that,the formula is
......(1)
(a)
Given that,
[ subtracting 32 from both sides]
......(2) [Multiplying 
]
(b)
Given that, the boiling point of water is 212°F.
Putting F=212 in equation (2)
The boiling point of water is 100°C.
(c)
Given that, a house thermostat is set at 80 degree.
Putting F=80 in equation (2)
The setting in Celsius scale is 26.7°C.
we have the inequality
step 1
Find out the first solution (positive case)
The first solution is all real numbers less than or equal to 1.20
Interval (-infinite,1.20]
step 2
Find out the second solution (negative case)
Multiply by -1 both sides
The second solution is all real numbers greater than or equal to -2.8
the interval [-2.8, infinite)
step 3
Find out the solution to the given inequality
The solution is
[-2.8, infinite) ∩ (-infinite,1.20]=[-2.8,1.20]
the solution is the interval [-2.8,1.20]
see the attached figure to better understand the problem
Answer:
The sale price is $1
$1 is not a better price since there is a cheaper price of $0.7
Step-by-step explanation:
Original price is $2
The price now is 0.5 × $2 = $1
If the sale price was 0.35 of the original price;
It would be 0.35 × $2 = $0.7
$1 is not a better price since there is a cheaper price of $0.7
a coordinate plane is a two-dimensional number line where the vertical line is called the y-axis and the horizontal is called the x-axis. And a number line is
a line on which numbers are marked at intervals, used to illustrate simple numerical operations. So how are the related........?
7.5minutes/1miles
..............................
