Question: please help & include explanation . A certain element has a half life of 1.5 billion years. a. You find a rock containing a mixture

please help & include explanation .

A certain element has a half life of 1.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 20% of the original element remains; the other 80% decayed into lead. How old is the rock? b. Analysis of another rock shows that it contains 45% of its original element; the other 55% decayed into lead. How old is the rock? a. The rock is approximately billion years old (Round to one decimal place as needed.) b. The rock is approximately billion years old. (Round to one decimal place as needed.) Enter your answer in each of the answer boxes. Save for Later Type here to search B. a

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 15% of the original element remains; the other 85% decayed...

8 of 17 This Quiz: 17 A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 15% of the original element remains;...

A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 55% of the original element remains; the other 45% decayed...

6 A certain element has a half life of 2.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 40% of the original element remains; the other 60%...

A certain element has a half life of 3.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 5 % of the original elementremains; the other 95 % decayed...

A certain element has a half life of 2.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 40% of the original element remains; the other 60% decayed...

A certain element has a half life of 4.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 45% of the original elementremains; the other 55% decayed...

A certain element has a half life of 3.5 billion years. You find a rock containing a mixture of the element and lead. You determine that 60% of the original elementremains; the other 40% decayed into...

having trouble with B. Acertain element has a half life of 3.5 billion years. a. You nd a rock containing a mixture of the element and lead. You determine that 60% of the original element remains;...

A certain element has a half life of 3.5 3.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 30 30 % of the original elementremains; the other 70 70...

A common procedure for increasing the moisture content of air is to bubble it through a column of water. Assume the air bubbles to be spheres of radius r 0 = 1 mm and to be in thermal equilibrium...

Gamma Variant Corporation authorized the sale of P4,000,000 of 12%, 8-year debentures on January 1, 2016. Interest is payable on January 1 and July. The entire issue was sold on April 1, 2016, at 104...

Based on the property in Q 6 , the home has appreciated in value by an average of 8 . 5 % per year. What is the current Loan - to - Value ratio?a ) 5 4 . 8 4 % b ) 6 7 . 6 4 % c ) 5 9 . 6 4 % d ) 7 2...

Journalize the following redemption transactions: 1. Oolong Corporation retired $130,000 face value bonds on June 30, 2017, at 103. The carrying value of the bonds at the redemption date was...