Answer:
The answer is 10 1/2.
Step-by-step explanation:
<u>First:</u>
Convert any mixed numbers to fractions.
Then your initial equation becomes:
15/4×14/5
<u>Next:</u>
Apply the fractions formula for multiplication,
=15/4×14/5
=210/20
<u>Last:</u>
Simplify 210/20, the answer is
=10 1/2
Hope this helped! =)
Okay. So when it comes to combining like terms, they should have the same variable and power. They dont have to be the exact same number, but they should at least have the same terms. In the expression 40 + 15e + 10e, 15e and 10e both have like terms, because they have the same variable. 15e + 10e is 25e. 40 has no like term, so that is left alone. The expression simplified is 40 + 25e.
All you do is divide 1.57kgs and 5.61kgs
and the answer to that would be 3
Answer:
We need a sample of at least 752 students.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
The margin of error of the interval is:
90% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
How large of a sample must she have to get a margin of error less than 0.03
We need a sample of at least n students.
n is found when M = 0.03.
We have no information about the true proportion, so we use 
.
Rounding up
We need a sample of at least 752 students.
1) C 392 in2
2) 125cm³
3) D 64 in3
