Ametallurgist has an alloy with 15% titanium and an alloy with 30% titanium. he needs 100 grams of an alloy with 21% titanium. how much of each alloy should be mixed to attain the 100 grams of alloy with 21% titanium?

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket