Respuesta :
Answer:
59.0 miles per hour
Step-by-step explanation:
When you have an equation with an absolute value, you must consider two options: one with a positive result and another one with a negative result.
[tex]x-55 = 4.2\\x = 4.2 + 55\\x = 59.2\\\\And\\\\x-55 = -4.2\\x=-4.2 + 55\\x = 50.8[/tex]
In this case you need the maximum safe driving speed which is 59.2 miles per hour
In this case you need the maximum safe driving speed which is 59.2 miles per hour.
[tex]x-55=4.2[/tex] is the equation can be used to determine the maximum safe driving speed.
What is an equation?
An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.
Given equation
|x – 55| = 4.2
When you have an equation with an absolute value, you must consider two options: one with a positive result and another one with a negative result.
[tex]x - 55 = \pm 4.2[/tex]
[tex]x-55=4.2[/tex]
[tex]x=4.2+55[/tex]
[tex]x=59.2[/tex]
[tex]x - 55 = \pm 4.2[/tex]
[tex]x-55=-4.2[/tex]
[tex]x=-4.2+55[/tex]
[tex]x=50.8[/tex]
In this case you need the maximum safe driving speed which is 59.2 miles per hour.
[tex]x-55=4.2[/tex] is the equation can be used to determine the maximum safe driving speed.
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