25 books in her entire reading list.
Answer:
72 hours
Step-by-step explanation:
Rate =Distance / Time
Rate=400/18=22.222
Time=Distance/ Rate
Time= (1600 x 18)/400 = 72hours
Answer:
What you want to do is solve for m in whichever equation it's easier to so in, then substitute that in to the other equation. For instance:
X=3m-4
Y=6-m
Solve the 2nd equation to get m=6-y
Plug that into the first equation to get x=3(6-y)-4
X=18-3y-4
X-14=-3y
14-x=3y
Y=(14-x)/3
Answer:
1, 1:2 = 3:x
1/2 = 3/x.......(Criss cross)
x = 3x2/1 = 6 cups
2,. language arts : social studies
3,. 1/50 = 4.5/ x.....(Criss cross)
x = 50 x 4.5/1 = 225 miles