When ringing up a customer it takes 30 seconds to process well as 5 seconds to scan each item being purchased. if it takes 50 seconds to ring up a customer, how many items are being purchased ?

4 items are being purchased in 50 sec.

Step-by-step explanation:

Given:

Time taken for process = 30 seconds.

Time taken to Scan each purchased item = 5 sec

Let the number of item purchased be x.

Total time taken to ring up customer = 50 sec

Hence Total time taken to ring up customer will be equal to sum of time taken for process and time taken to Scan each purchased item times number of item purchased.

Total time taken to ring up customer = Time taken for process + Time taken to Scan each purchased item × Number of items purchased.

Hence, 4 items are being purchased in 50 sec.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98