Answer:
a.) 70 km per hour
b.) 245 km
Step-by-step explanation:
a.) Find how far the car can travel per hour by dividing:
The car travels at a rate of 70 km per hour.
b.) Make an equation with <em>h</em> as hours and <em>d</em> as the distance the car can travel:
Insert the hours:
Simplify:
At a rate of 70 km per hour, in 3.5 hours, the car can travel a total of 245 km.
Answer:
B
Step-by-step explanation:
I think B (Every fifth student from each grade)
A only talks about female students, C talks about students on a sports team which would be biased since the students on the sports team probably get more exercise, and d would be ok but not the best since some last names are more common and others you would get only a very small sample size.
Step-by-step explanation:
We split the duration into 2 smaller intervals.
- 8:45p.m. to midnight = 3 hours and 15 min
- Midnight to 2:15a.m. = 2 hours and 15 min
Hence the total duration is 5 hours and 30 min.
Answer:
1/2 =x
Step-by-step explanation:
9/x + 2 = 20
Subtract 2 from each side
9/x + 2-2 = 20-2
9/x =18
Multiply each side by x
9/x *x = 18*x
9 = 18x
Divide each side by 18
9/18 = 18x/18
1/2 =x
