The number of birds that should be on the scale is 20 birds
Given the following parameters
Number of birds in the pet store = 10 birds
If the number of dogs would be double the number of birds, then;
y = 2x
y = 2(10)
y = 20
Hence the number of birds that should be on the scale is 20 birds
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runners to start a race. In the first half of the race,
1/5
of them dropped out. In the second half of the race,
4/7
of the remaining runners dropped out. How many runners finished the race?
Answer:
20
Step-by-step explanation:
100 / 5 = 20