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Hugh bought some magazines that cost [tex]$\$[/tex]3.95[tex]$ each and some books that cost $[/tex]\[tex]$8.95$[/tex] each. He spent a total of [tex]$\$[/tex]47.65[tex]$. Let $[/tex]m[tex]$ represent the number of magazines and $[/tex]b[tex]$ represent the number of books. Which equation models the situation?

A. $[/tex]m + b = 47.95[tex]$
B. $[/tex]m + b = 60.55[tex]$
C. $[/tex]3.95m + 8.95b = 47.65[tex]$
D. $[/tex]8.95m + 3.95b = 47.65$


Sagot :

To determine which equation models the situation described, we need to create an equation based on the given information:

1. Let [tex]\( m \)[/tex] represent the number of magazines Hugh bought.
2. Let [tex]\( b \)[/tex] represent the number of books Hugh bought.
3. Each magazine costs [tex]\( \$3.95 \)[/tex].
4. Each book costs [tex]\( \$8.95 \)[/tex].
5. Hugh spent a total of [tex]\( \$47.65 \)[/tex].

Here's how we can model the situation:

[tex]\[ \text{Cost of magazines} = 3.95m \][/tex]
[tex]\[ \text{Cost of books} = 8.95b \][/tex]

The total amount spent is the sum of the costs of magazines and books. Therefore, we can write the equation as:

[tex]\[ 3.95m + 8.95b = 47.65 \][/tex]

This equation states that the total cost of [tex]\( m \)[/tex] magazines and [tex]\( b \)[/tex] books equals [tex]\( \$47.65 \)[/tex].

Given the options:

1. [tex]\( m + b = 47.95 \)[/tex]
2. [tex]\( m + b = 60.55 \)[/tex]
3. [tex]\( 3.95m + 8.95b = 47.65 \)[/tex]
4. [tex]\( 8.95m + 3.95b = 47.65 \)[/tex]

The correct equation that models the situation is:

[tex]\[ 3.95m + 8.95b = 47.65 \][/tex]

So, the correct answer is:

[tex]\[ \boxed{3} \][/tex]

This equation takes into account the cost of magazines and books and the total amount spent by Hugh.