Question

if you dont know what make a conversion factor and use a conversion factor mean in the pull - down menus, click the check answers button and read the concepts lesson.
jason wants to calculate the number of tiles he used in his constructions projects in his kitchen and in his bathroom. choose the action that jason should use to do this calculation.
tiles in kitchen (tiles)
tiles in bathroom (tiles)
total tiles used (tiles)
erkan made a huge bowl of punch and wants to calculate how many guests he can serve. choose the action that erkan should use to do this calculation.
amount of punch made (oz)
ounces per guest (oz/guest)
number of guests (guests)
barbara owns several pizza shops. she just received an order of cheese and needs to divide the cheese equally among the different shops. choose the action that barbara should use to do this calculation.
shops (shops)
pounds of cheese (lbs)
pounds of cheese per shop (lbs/shop)
chester wants to calculate how much weight he lost this summer. choose the action that chester should use to do this calculation.
weight at the beginning of summer (lbs)
weight at the end of the summer (lbs)
total weight loss (lbs)
a lawn mowing service mows many lawns each week and charges the same amount for each lawn. choose the action that the lawn mowing service should use to compute the amount of money they earn each week.
charge per lawn ($/lawn)
lawns mowed (lawns)
earnings ($)

Explanation:

Step1: Sum kitchen and bathroom tiles

$\text{Total tiles} = \text{Kitchen tiles} + \text{Bathroom tiles}$

Step2: Divide punch by serving size

$\text{Number of guests} = \frac{\text{Total punch (oz.)}}{\text{Ounces per guest (oz/guest)}}$

Step3: Divide cheese by number of shops

$\text{Cheese per shop} = \frac{\text{Total cheese (lbs)}}{\text{Number of shops}}$

Step4: (Already correct) Subtract end from start weight

$\text{Weight loss} = \text{Start weight} - \text{End weight}$

Step5: Multiply charge by lawns mowed

$\text{Total earnings} = \text{Charge per lawn} \times \text{Lawns mowed}$

Answer:

1. add
2. divide
3. divide
4. subtract (already selected correctly)
5. multiply