Respuesta :
Answer:
8 is the number.
Step-by-step explanation:
We are given the following expression in words which we are to translate into mathematical expression and tell the number:
'eight times the sum of 5 and some number is 104'
Assuming the number to be [tex]x[/tex], we can write it as:
[tex] 8 ( 5 + x ) = 1 0 4 [/tex]
[tex] 5 + x = \frac { 1 0 4 } { 8 } [/tex]
[tex] 5 + x = 1 3 [/tex]
[tex]x=13-5[/tex]
x = 8
ANSWER
[tex]8[/tex]
EXPLANATION
Let the number be y.
Eight times the sum of the number and 5 is written as:
[tex]8(5 + y)[/tex]
From the question, this expression must give us 104.
This implies that:
[tex]8(5 + y) = 104[/tex]
Expand the parenthesis to get;
[tex]40 + 8y = 104[/tex]
Group similar terms to get:
[tex]8y = 104 - 40[/tex]
Simplify:
[tex]8y = 64[/tex]
[tex]y = \frac{64}{8} [/tex]
This finally evaluates to
[tex]y=8[/tex]
Hence the number is 8