The digit one is in the "ten thousands" column
Answer:
a = (p - b)/2
Step-by-step explanation:
Isolate the variable, a. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operation, and =
Parenthesis
Exponents (& roots)
Multiplication
Division
Addition
Subtraction
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First, subtract b from both sides:
p (-b) = 2a + b (-b)
p - b = 2a
2a = p - b
Next, divide 2 from both sides:
(2a)/2 = (p - b)/2
a = (p - b)/2
a = (p - b)/2 is your answer.
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Use the Rational Root Theorem, which gives all the possible values that are roots. From there, you can use either algebraic long division or synthetic division to figure out from the possible roots.
Answer:
nice
Step-by-step explanation:
Answer:
Plumber A
Step-by-step explanation:
Given the following :
Hours ___repair cost
________A ____B____C_____D
1 ______$35___55___50____50
2 _____ $65__ $75__ $75__ $60
3 _____ $95__ $95 _$100 ___$70
Charge plan:
Flat fee(x) + hourly rate(y)
For 1 hour:
Plumber A:
x + y = 35 ; x = 35 - y
x + 2y = 65 ;
35 - y + 2y = 65
y = 65 - 35 = $30 hourly
Plumber B:
x + y = 55 ; x = 55 - y
x + 2y = 75 ;
55 - y + 2y = 65
y = 65 - 55 = $10 hourly
Plumber C:
x + y = 50 ; x = 50 - y
x + 2y = 75 ;
50 - y + 2y = 65
y = 65 - 50 = $15 hourly
Plumber D:
x + y = 50 ; x = 50 - y
x + 2y = 60 ;
50 - y + 2y = 60
y = 65 - 50 = 10 hourly
Hence, Plumber A charges the highest hourly rate at $30 per hour