Atree casts a shadow 30 ft long. at the same time, the shadow cast by a vertical 8ft pole is 5 ft long. find the height of the tree.

Since this is a similar triangle problem, we will put the corresponding measurements with the other triangle. Then cross multiply.

Solve.

The height of the tree is 48 feet.

2 1/2 feet

step-by-step explanation:

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.