Answer:
21
Step-by-step explanation:
Twice the difference between x and k is 2(x-k)
The ratio is equivalent because 1/20 is 5 which means 9/10 is equal
Answer:2:5
Step-by-step explanation:
Answer:
2 11/12
Step-by-step explanation:
total amount fred used = 1/3 x 7 = 7/3
total amount Janice used = 1/4 x 7 = 7/4
total amount used =
7/3 + 7/4
(28 + 21) / 12 = 49 / 12 = 4 1/12
Amount left = 7 - 4 1/12 = 2 11/12
