1. 4-5c=6+9(8-7c) 2. -4=-9b*2+9b
3. 32c+12=2c+3(4+10c)
4. 70(n+4)-224=7(10n+8)
5. 3(r+10)=7-(3r-23)
6. 6+10r=9(7-4r)

State whether each question has one, infinite, or no solution. If just one solution solve the variable

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl