Blake and three friends meet for lunch. His friends all get the same thing, but Blake gets a different lunch that costs $6. Write an expression to show the total amount that Blake and his friends spend. Then find the total amount that Blake and his friends spend if each friend spend $8.

Respuesta :

Answer:

The expression for Total amount spent on lunch is [tex]y=3x+6[/tex].

The total amount that Blake and his friends spend on lunch is $30.

Step-by-step explanation:

Given:

Cost of Blake lunch = $6

Number of friends = 3

We need to write the expression for Total amount spent on lunch.

Solution:

Let the Total amount spent on lunch be 'y'.

Let the Cost spend by each on lunch be 'x'.

So we can say that;

Total amount spent on lunch is equal to Sum of Cost spend by each on lunch multiplied by Number of friends and Cost of Blake lunch.

framing in equation form we get;

[tex]y=3x+6[/tex]

Hence the expression for Total amount spent on lunch is [tex]y=3x+6[/tex].

Now Given:

Cost spend on lunch by each friend = $8

We need to find the total amount that Blake and his friends spend on lunch.

Now to find the same we will substitute the value of 'x' as 8 in above equation we get;

[tex]y=3x+6\\\\y=3\times8+6\\\\y=24+6\\\\y=\$30[/tex]

Hence the total amount that Blake and his friends spend on lunch is $30.