Question

V9030NOOIL NOXIAExample 5: Last week, Danielle spent x dollars on lunch, three times as much on transportation as she did onlunch, and $4 less on book than she did on transportation. How much did Danielle spend on lunch if she had$59 total to spend

Answer 1

Danielle spent x dolar on lunch.

Three times as much on transportation, which can be written as 3x

Then,$4 less on a book that she did on transportation, so 3x-4

If she spent $59, we can equal all the expressions to this value.

Therefofore:

x + (3x) +(3x-4) = 59

To find how much she sped on lunch, we need to solve for x:

x + 3x + 3x - 4 = 59

Solve the like terms:

7x -4 = 59

Add both sides 4 units:

7x -4 +4 = 59 + 4

7x = 63

Divide both sides by 7:

7x/7 = 63/7

x = 9

Hence, Danielle spent $9 dollars on lunch.