samindeniz
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
samindeniz
samindeniz
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
General
Please explain how to solve this problem. "The two triangles are similar. What is the value of x?"
5 months ago
Q:
Please explain how to solve this problem. "The two triangles are similar. What is the value of x?"
Accepted Solution
A:
Set up the proportion. That's what similar gives you the right to do.
(12 + 3) / 4x = 12 / (3x + 1) Cross multiply
15 * (3x + 1) = 12 * 4x Remove the brackets
45x + 15 = 48x Subtract 45x from both sides.
15 = 48x - 45x
15 = 3x
x = 5