Exact Form: 1991/2
Decimal Form: 995.5
Mixed Number Form: 995 1/2
Answer:
<em>Grades to be scored in 3rd exam = 88</em>
Step-by-step explanation:
Given that average of 3 numbers is 85.
First two numbers are 81 and 86.
To find:
3rd number so that average is 85
Solution:
Let the third number = 
Formula for average is:

Here, sum of numbers = 
Total count of numbers = 3

<em>Grades to be scored in 3rd exam = 88</em>
Assuming that they both work at the same pace together 66/2=33*3=99 to get the whole house done because she takes 3 times as long and has to pick up the slack when cara is gone i think at least it sounds logical in my mind but maybe somebody thinks different but final answer
t=99 hours
Answer:
426
Step-by-step explanation:
320 pounds is = to 5120 ounces there are 12 months in a year so 5120 divided by 12 is 426
If we had the info on with this "data" is, we then can solve it.