Answer:
15 (50*0.3)
Step-by-step explanation:
Answer:
y = 3x - 9
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 3 , thus
y = 3x + c ← is the partial equation
To find c substitute (4, 3) into the partial equation
3 = 12 + c ⇒ c = 3 - 12 = - 9
y = 3x - 9 ← equation of line
Set up the ratios as proportional fractions:

We can simplify the first fraction to make the problem easier. Both the numerator and denominator of the first fraction can be divided by 3:


Both fractions now have the same denominator. Since both fractions have to equal each other, the numerators will also be the same. Therefore,
x = 4.
I hope this helps witb you.