Which steps could be used to solve this story problem?

kathie ran for twice as long as she walked. she walked for 10 minutes more than she rode her bike. she walked for 30 minutes.

how many minutes did kathie exercise altogether?

choose all answers that are correct.

multiply 30 × 2.
add that product to 30.
divide the sum by 10.

divide 30 by 2. then add the quotient to 10.

multiply 30 × 2.
subtract 10 from 30.
add the product and the difference.
add that sum to 30.

add 30 + 30.
subtract 10 from 30.
add the sum and the difference.
add that sum to 30.

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i.e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)

The unpaid balance on a mastercard charge was $1,056.23. during the month, payments of $300 and $250 were made and charges of $425 and $274.16 were added. if the finance charge is 1.2% per month on the unpaid balance, find the new balance at the end of the month. $1,205.39 $1,218.06 $918.06 $1,768.06