Answer:
A), B) & D).
Step-by-step explanation:
Marcia has run 1 4ths while, Tamara has done 3 4ths of the race. Marcia has to do 3 4ths left, and Tamara has to do 1 4ths left.
Let us say that the number of pens that Matt has is x.
Therefore the number of pen that Sarah has is:
Sarah pens = (5/4) (1/3) x = (5/12) x
So the total number of pens they have is:
total = x + (5/12) x = (17/12) x
Hence the fraction of Matts pen is:
fraction = x / [(17/12) x]
fraction = 12/17
Answer:
Step-by-step explanation:
Lifeguard=x
tutor=35-x
7x+10(35-x)=290
7x+350-10x=290
-3x=-60
x=20 hours as a lifeguard ($140)
35-x=15 hours as a tutor ($150)
adds to $290.
Hope that helps! :)
250 miles in 5 hours can also be written as 250/5 and since you are looking for a unit rate we must make the denominator 1 so we can divide both sides by 5 and get 50/1 in other words the unit rate is
50 miles per hour