Answer:
There are 10 decimeters in one meter so the answer is 15.5 / 10 = 1.55 meters.
(9y+y) + (6+3)
The answer is 10y+9
The number of sports books is 13 books.
<h3>What is an equation?</h3>
A mathematical equation is the representation of a problem by the use of variables. Often times, an equation is formed from the factors that are in a problem.
We have to represented each of the books read with an algebraic term;
Let the number of mystery books be y
Let the number of sports books be x
Total number of books = 23
We know that;
x + y = 23
but y = 10
x = 23 - 10
x = 13 books
Learn more about algebra:brainly.com/question/24875240
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5÷3=1.66
1.66×8=13.28, round to 13.3