Answer:
3/5
Step-by-step explanation:
You can divide 18 by 6 to get 3, and since you need to dive the same number by the top and bottom, 30 divided by 6 is 5.
Max mows a yard in 45 minutes and Jan takes twice as long mowing the same yard. If Max and Jan both work together, it will take approximately 30 minutes to for them both to mow the yard.
It take Max 1 minute to mow 1/45 of the yard.
It takes Jan 1 minute to mow 1/90 of the yard.
1/45+1/90 =3/90 = 1/30 of the yard can be mowed by both in just one minute. This is how to get the answer, 30 minutes.
Theorem: If two chords intersect within a circle, then the product of the lengths of the segments (parts) of one chord is equal to the product of the lengths of the segments of the other chord.
In your case this theorem sounds as
Solve this equation:
Answer: correct choice is C.
The Answer is 10.
2(3)+ 4
6+4
=10