If these two shapes are similar, what is the measure of the missing length n? 39 in
15 in
91 in

n = 35 inches

Step-by-step explanation:

Blue Triangle

Longer side = 91

Shortest side = 39

Brown triangle

Longer side = x

Shortest side = 15 in

When you have two triangles that are similar you have to set up your proportion like this

brown long/brown shorter = blue longer / blue shorter

x/ 15 = 91/39         Multiply both sides by 15

x = 91 * 15/ 39      

x = 1365 /39

x = 35

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: