use cross products
5*(y-5) = 3*(y-7)
distribute
5y-25 = 3y-21
subtract 3y from each side
2y-25 = -21
add 25 to each side
2y = 4
divide by 2
y=2
Answer:
Area=60
Step-by-step explanation:
Area of a triangle:
A=1/2*h*b
Substitute:
Height = h = 15
Base = b = 8
A=1/2*8*15
Solve: A=60
* represents multiplication
Here, we are to solve for the value of x in the given euation;
2/(3x-9) = 6
We can solve this by making a cross multiplication
2/(3x-9) = 6/1
The cross-multiplication would yield;
2 * 1 = 6 * (3x-9)
2 = 6(3x-9)
opening the bracket, we have
2 = 18x - 54
Collect like terms;
54 + 2 = 18x
18x = 56
divide both sides by 18
18x/18 = 56/18
x = 28/9
x = 3 1/9
Answer:
y - 6 = - 7(x - 3)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (3, 6) and (x₂, y₂ ) = (5, - 8)
m = 
= 
= - 7
Use either of the 2 points for (a, b)
Using (3, 6), then
y - 6 = - 7(x - 3) ← in point- slope form
Answer:34344e4365655.6
Step-by-step explanation:
