3/4 = x / 340....3 to 4 students = x to 340 students
cross multiply
(4)(x) = (3)(340)
4x = 1020
x = 1020/4
x = 255 <==
or this way.....
3 out of 4 students.....3/4 = 75%
so 75% of 340 = 0.75(340) = 255 <=
19. There are 24 hours in a day and Maria travelled for 15 days so multiply the two:
24*15=360
So Maria travelled for 360 hours.
22a. False; 2,000 lbs = 1 Ton
22c. True; 48 oz = 3 lbs
If a function has roots -1 and -5, it must be in the form

We can fix the coefficient a by imposing the passing through (0,-30):

So, the function is

14 (inches) times 4 = 56 inches which would be 4.6 feet tall