From monday through friday, james works in the library on 2 days and in the cafeteria on another day. on saturday and sunday, james washes cars 50% of the days. how many days does james work in a week? what percent of the days from monday through friday does he work?

4

60%

Step-by-step explanation:

To find how many days James works in the week we first need to analyze the problem.

Monday to Friday = 5 days

On 2 days he works in a library.

On another day he works in the cafeteria.

So that means that James works.

2 days Library + 1 day Cafeteria = 3 days.

Now on Saturday and Sunday James works 50% of the days.

Saturday and Sunday = 2 days

50% of 2 = 1

So James works 1 day on Saturday and Sundays.

How many days does James work in the week?

Weekdays = 3

Weekend = 1

So James works 4 days in a week.

What percent of the days from Monday through Friday does he work?

James works 3 days of Monday through Friday

Since there are a total of 5 days from Monday through Friday, we can express it like this:

Now to find the percentage, we multiply the total to 100.

0.6 x 100 = 60%

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.