1. 28 x 3/4 = 21 kg
2. 1 hr = 60 mins
=》 1/4 hr = 60/4 = 15mins
Answer:
= 909
a good calculator is mathpapa
Answer:
1/6
Step-by-step explanation:
after step 2, you simplify
Answer:
29%
Step-by-step explanation:
If 7 is 100% correct then 5 would only be a portion of it
So you need to divide 5 by 7
So 5 divided by 7 is .714 or .71
this means the error was 29%
Divide 63 by the denominator of the probability: 63/9= 7
Now, multiply 7 by the numerator of the fraction to get the number of red marbles are 7x7=49