Antonio has found that he can input statistical data into his computer at the rate of 2 data items faster each half hour he works. one monday, he starts work at 9: 00a. m., inputting data at a rate of 3 data items per minute. at what rate will antonio be inputting data into the computer by lunchtime (noon)? a. 12 data items per minute c. 21 data items per minute b. 15 data items per minute d. 24 data items per minute

b. 15 data items per minute

Step-by-step explanation:

Given,

The number of data he can input per minute at 9:00 AM = 3,

Since, he inputs data 2 data items faster each half hour,

So, the number of inputted data per minute at 9:30 AM = 3 + 2 = 5,

At 10:00 AM = 5 + 2 = 7,

At 10:30 AM = 7 + 2 = 9,

At 11:00 AM = 9 + 2 = 11,

At 11:30 AM = 11 + 2 = 13,

At 12:00 AM or at noon = 13 + 2 = 15,

Hence, his rate of inputting data at noon is 15 data items per minute.

Option 'b' is correct.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.