From 530daaf8210d2be0b316fa78a43fd74519036047 Mon Sep 17 00:00:00 2001
From: Jane <jane.edwards.mcnear@gmail.com>
Date: Wed, 15 Aug 2018 20:28:22 -0700
Subject: [PATCH] Completed BinaryAndDecimal

---
 lib/binary_to_decimal.rb | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/binary_to_decimal.rb b/lib/binary_to_decimal.rb
index 439e8c6..1c7e41b 100644
--- a/lib/binary_to_decimal.rb
+++ b/lib/binary_to_decimal.rb
@@ -4,6 +4,14 @@
 # The least significant bit is at index 7.
 # Calculate  and return the decimal value for this binary number using
 # the algorithm you devised in class.
+
 def binary_to_decimal(binary_array)
-  raise NotImplementedError
+  binary_digit = 128
+  total = 0
+  binary_array.each do |num|
+    num *= binary_digit
+    total += num
+    binary_digit = binary_digit / 2
+  end
+  return total
 end