Answer:
20 balls are white
Step-by-step explanation:
5/7* 28
Answer:
First look at the number of bricks alone.
Going from 50 bricks to 60 bricks is more work, thus it will require more people. The number of people would be the ratio of the 2. Since the number must be larger, you know the numerator must be the larger of the 2 numbers, so you get 60/50
Next look at the time alone.
Going from 30 minutes to 20 minutes is more work, thus it will require more people. The number of people would be the ratio of the 2. Since the number must be larger, you know the numerator must be the larger of the 2 numbers, so you get 30/20
Now you can just multiply everything.
= 5*60/50*30/20
= 5*6/5*3/2
= 90\10
= 9.
Answer:
The rate of depreciation is 50%
Step-by-step explanation:
We are given
a car is depreciated in four years
so, depreciation in 1 year is
the rate of depreciation using twice the straight-line rate
so, we will multiply by 2 and then we can find rate of depreciation
so, rate of depreciation is
%
