Answer: The difference between 82 and -40 is 122.
Step-by-step explanation:
1/4 + 3/8
Rewrite with the LCD (lowest common denominator)
Remember : the denominator is just the bottom number on a fraction.
Let's look at both of our given fractions denominator's.
4 & 8 → What do both of these numbers have in common? They both go into 8!
How many times does 4 go into 8? → Twice
How many times does 8 go into 8? → Once
So, because of that, we must multiply the top number (numerator) of each fraction with either one, or two.
First fraction : 1/4 × 2/2 =2/8 → So, our first fraction changes.
Second fraction : 3/8 × 1/1 = 3/8 → However, our second fraction changes.
So, our new question looks like this : 2/8 + 3/8
If you wanted us to answer this question, we simply need to add the top numbers (numerators) with one another because both fractions have the same bottom numbers (denominators).
2 + 3 = 5
So, our answer is 5/8 and our question rewritten with the LCD is : 2/8 + 3/8
~Hope I helped!~
Question:
Write an algebraic expression for how many miles Mr.Stein drove.
Answer:
(70 - y) miles
Step-by-step explanation:
Given
Distance to business meeting from office = 70 miles
Mr. Smith drove the first y miles
Let x = the remains distance driven by Mr. Stein
x + y = 70 ---- Make x the subject of formula
x = 70 - y
So, the expression is (70 - y) miles
Answer:
The domain is the input values on the x-axis and range is input values on the y-axis
Step-by-step explanation:
Basically, domain is the horizontal values and range is the vertical ones.
Answer:
Confidence Interval is (21.76928571,23.43071429)
Step-by-step explanation:
The Formula we are going to use is:
±
Where:
μ is the mean of sample
σ is the standard deviation of population
n is the sample size
z is the distribution
In our case:
μ=$22.60,σ=$2.50
For 98% Confidence level, 1-α=98%
α=2%
α/2=1%=0.01
From Cumulative standardized Normal Distribution table
=2.326
P=23.430714 P=21.769286
Confidence Interval is (21.76928571,23.43071429)
