What is the solution for (5 1/2 + 2 3/4)— 3 1/2

19/4

Step-by-step explanation:

5 1/2=11/2

2 3/4=11/4

3 1/2=7/2

11/2+11/4=22/4+11/4=33/4

33/4-7/2=33/4-14/4=19/4

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.