Answer:
25 gallons
Step-by-step explanation:
Given
135 miles to 5 gallons
Required
Determine the number of gallons for 675 miles
From the question, number of miles is directly proportional to number of gallons:
So, we have:
and
<em>Where x represents the number of gallons for 675 miles</em>
Cross Multiply:
Make x the subject
<em>Hence, the car needs 25 gallons</em>
Answer:
Only point D
Step-by-step explanation:
y=x would mean that both x and y are the same
only D has x and y co-ordinates that are the same
-3 and -3
Answer:
x=7 , y = 8.
Step-by-step explanation:
10x+65 = 135
or, 10x = 70
so, x = 7
Now,
4y-4=28
or, 4y = 32
so, y = 8
Answer:
The equation of line for given points is y = - 40 x - 42
Step-by-step explanation:
Given two points as :
( -1 , - 2 ) and ( 3 , - 162 )
Now, Equation of line in points form
y - = m × ( x - )
Where m is the slope of line
And, m =
or, m =
or, m =
∴ m = - 40
So, Slope of line for given points is - 40
Now equation of line can be written as
y - ( - 2 ) = ( - 40 ) × ( x - ( - 1 ) )
or, y + 2 = ( - 40 ) × ( x + 1 )
or, y + 2 = - 40 x - 40
or, y = - 40 x - 40 - 2
∴ y = - 40 x - 42
Hence the equation of line for given points is y = - 40 x - 42 Answer