Could you give Brainliest please???
Answer:
y = 2 - 1/2x
Step-by-step explanation:
So we are given the equation 3x + 6y = 12 and are ask to find y.
To find y you must isolate it first.
3x + 6y = 12
(Subtract 3x to isolate the y term)
6y = 12 - 3x
(Divide both sides by 6 to isolate the variable)
y = 2 - 3/6x
(Simplify)
y = 2 - 1/2x
And that is your answer since there is a second variable.
Answer: 6.534 x 10^(-1)
Step-by-step explanation:
Six thousand five hundred and thirty four ten thousandth
6534/10000
Convert to decimal
6534/10000=0.6534
Then convert to standard form
0.6534=6.534 x 10^(-1)
Move everything to one side and factorize by grouping.
x⁴ - 4 = x³ + 2x
x⁴ - x³ - 2x - 4 = 0
(x⁴ - 4) - (x³ + 2x) = 0
(x² - 2) (x² + 2) - x (x² + 2) = 0
(x² - x - 2) (x² + 2) = 0
(x - 2) (x + 1) (x² + 2) = 0
Then
x - 2 = 0 or x + 1 = 0 or x² + 2 = 0
x = 2 or x = -1 or x² = -2
If x is real, then the third case has no solution. Then x = 2 or x = -1. Otherwise, we can solve over the complexes and include x = ± √2 i where i = √(-1).
Answer:
y = 13x
Step-by-step explanation:
First we need to take the number miles the Johnson family drove and divide it to the number of gallons of gasoline used to find how many miles per gallon
Miles per gallon = 52/4
Miles per gallon = 13
Now that we know how many miles per gallon, let's make an equation to find how much they can travel on a full tank of 15 gallons.
Let y = number of miles traveled
Let x = number of gallons
y = 13x
Now let's see how much they can travel in 15 gallons.
y = 13x
y = 13(15)
y = 195 miles
So the Johnson family can drive 195 miles on a full tank of 15 gallons of gasoline.
