Answer:
The ones you got wrong, have to have a negative sign...
Step-by-step explanation:
Brainliest here
To solve this division would be the best way to go. First, set the 2 and 1/2 cups as 5/2. Then go to the lowest common denominator of 4 making 5/2 into 10/4. 3/4 can go into 10/4 3 times meaning that Roger can make 3 loaves of bread.
The answer is 2 because 1+1=2, and 6÷3 is also 2.
Inverse variation means y=k/x (direct variation is y=kx) so we can use the info given to find the constant k
y=k/x
6=k/900
k=6(900)
k=5400 so the equation is:
y=5400/x or more accurately for this problem
t(v)=5400/v then:
t(800)=5400/800
t(800)=6.75 hours