Answer:
0.4
Step-by-step explanation:
so, Katherine can do 0.1 of the job per hour. (if she needs 10 hours for the job, each hour she can do the whole divided by the time, so 1/10, which is 0.1)
if in two hours she and Marina can be done, then Marina will do 1(the whole job)-2/10 (twice as much as she can do in an hour)=0.8 of the job. So if Marina does 0.8 of the job in two hours, each hour she will do half of it: 0.4 - and this is the correct answer
3 equivalent ratios would be 1:9 , 10:90, and 20:180
I don’t see a picture might need more work
If you graph 4 separate triangles with the four different points, (2,3) and (1,5) form a right triangle.
Answer:
Q and T
Step-by-step explanation:
these seem to be the most likely choice