A delicatessen makes a roast beef-on-sourdough sandwich for which you can choose from 9 condiments. (a) How many different types of roast-beef-on-sourdough sandwiches can the delicatessen prepare? different types

(b) What is the minimum number of condiments the delicatessen must have available if it wishes to offers at least 2,000 different types of roast-beef-on-sourdough sandwiches? condiments​

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

2/3

step-by-step explanation: