As per linear equation, Donald can go with the given gallons of gas is 276 miles.
The total cost of the gas used is $28.98.
"A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. When this equation is graphed, it always results in a straight line."
Given, Donald's car gets about 30 miles per gallon.
Donald drive on 9.2 gallons of gas.
Therefore, total distance that Donald can go with the given gas is
= mileage of the car × total amount of gas
= 30 × 9.2 miles
= 276 miles
Again, cost of gas per gallon is $3.15.
The total cost
= total gallons of gas used × cost of gas per gallon
= $(9.2 × 3.15)
= $28.98
Learn more about a linear equation here: brainly.com/question/14498830
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Answer: and
Step-by-step explanation:
Alright, lets get started.
The given equation is :
Adding 8 in both sides, it will become
To make it perfect square, we need to add 25 and subtract 25
Adding 17 in both sides
taking square root
So,
and .. Answer
Hope it will help :)
Answer:
Step-by-step explanation:
X² + 10x = -8
add to both side the square of half the coefficient of X which is 5²
X² + 10x + (10/2)² = -8 + (10/2)²
X² + 5² = -8 + 5²
( X + 5 )² = -8 + 25
(X + 5)² = 17
X + 5 = +- √17
Therefore, X = -5 +- √17.
X = -5 + √17 , -5 - √17.