Alana and Petra bought 9 books combined.
Angus bought 19 books and had a $10 discount.
Angus spent $5 more than Alana and Petra combined.
This means that the price of 19 books is $15 more than the price of 9 books. 19 books is 10 books more than 9 books.
Giving you 10 books = $15, 1 book = $1.50
Answer:
82
Step-by-step explanation:
91 IS THE AREAS OF THE SIX RECTANGLES
The value of the addition operation is 2.38157 x 10^19
<h3>How to add the numbers/expressions?</h3>
The numbers are given as:
2.35 x 10^19 and 3.157 x 10^17.
Express as sum
2.35 x 10^19 + 3.157 x 10^17.
Express 10^17 as 10^19 * 10^-2
So, we have:
2.35 x 10^19 + 3.157 x 10^19 * 10^-2
Factor out 10^19
(2.35 + 3.157 * 10^-2) x 10^19
Express 10^-2 as 0.01
(2.35 + 3.157 * 0.01) x 10^19
This gives
(2.35 + 0.03157) x 10^19
Evaluate the sum
2.38157 x 10^19
Hence, the value of the addition operation is 2.38157 x 10^19
Read more about addition at:
brainly.com/question/24536701
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He needs to drink 2 more cups. Explanation: 8 ounces are in 1 cup. He drank 48 fluid ounces of water. 48 ounces of water = 6 cups. He needs to drink 8 cups total. 8-6 = 2.