The Galen Middle School is building a new bicycle storage shed in the school yard. On a carpenter's blueprint, the scale reads 1 in. = 3 ft. The frame for a doorway on the blueprint is shown as a in. Wide and 2a in. High. When the shed is built, what will be the actual dimensions of the doorway

Width = 3a

Height = 6a

Step-by-step explanation:

Given the following :

Scale = 1 in = 3 feets

Doorway frame on blueprint= a inches wide ; 2a inches High

Actual dimension of the doorway:

Since 1 in represent 3 feets

Actual doorway frame dimension will be :

Width = 3 * a = 3a

Height = 3 * 2a = 6a

c. (0.6,-1.4)

step-by-step explanation:

hope this

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb