geometry
posted by Tami .
I am currently in a section of my geometry book titled Applying Properties of Similar Triangles. This is a very easy section but there is on problem where I cannot figure out (forgot) the next step.
1. z4 12
 = 
z/2 10
2.(z4)10 = (z/2)12
3. 10z+40 = ?
Thank you for your time and your help would be appreciated a lot a lot a lot!!! :D please help

geometry 
Reiny
from (z4)10 = (z/2)12
10z  40 = 6z
take it from here.
Respond to this Question
Similar Questions

math
A stadium have to section a & B . tickets for section A cost $A each . tickets for section B cost $B each . johanna paid $105 for 5 section A and 3 section B. raiyah paid $63 for 4 section A and 1 section B . i) Write two eguations … 
geometry
The skipper of a boat knows that the water is too shallow to bring his boat inside a "danger semicircle" that goes from lighthouse to lighthouse. How can the angle between his sightings of the two lighthouses help him decide when he … 
Geometry. Grade 10. Similar triangles
the ratios of the ares of two similar triangles is 4 : 9. What is the ratio of their altitudes drawn from corresponding sides? 
physicsmechanics
A highspeed test track for cars has a curved section — an arc of a circle of radius R = 1440 m. The curved section is banked at angle a = 19.1 degrees from the horizontal to help the cars to stay in the road while moving at high … 
Geometry
Complete Problem #28 in Section 1.5 Exercises (Chapter 1) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary. Statements Reasons PQ=RS … 
geometry easy
The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? 
Trigonometry/Geometry  Inequalities
Let a, b, and c be positive real numbers. Prove that sqrt(a^2  ab + b^2) + sqrt(a^2  ac + c^2) is greater or equal to sqrt(b^2 + bc + c^2). Under what conditions does equality occur? 
Geometry
Complete Problem 34 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary. 
math 210 fundamentals of geometry
Complete Problem 31 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. Use the table below to show your work and solve the problem. You may add or delete rows as necessary. 
Geometry
Determine whether each statement is always sometimes or never true. If the answer is sometimes or never draw a counterexample. Two congruent triangels are similar : Two squares are similar : Two isosceles triangles are similar : Two …