24% of students buy there lunch, 190 students bring their lunch from home. how many students are there in total

so we know that 24% of the students buy their lunch at the cafeteria, and 190 students brownbag.

well, 100% - 24% = 76%, so the remainder of the students, the one that is not part of the 24% is 76%, and we know that's 190 of them.

since 190 is 76%, how much is the 24%?

The total number of students are 250 .

Step-by-step explanation:

As given

24% of students buy there lunch, 190 students bring their lunch from home.

As the percentage is always be 100% .

Thus

Percentage students bring their lunch from home = (100 - 24 ) %

                                                                                    = 76 %

Formula

Percentage = 76%

Part value = 190

Put all the values in the formula

Total value = 250

Therefore the total number of students are 250 .

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.