Marked price = 475
Discount = 45
Percentage Discount.
Discount/marked price × 100%
45/475 × 100% = 9.47%
Answer = 9.47%
Answer:
The correct statements are b, c and e.
Step-by-step explanation:
Consider the dot plot for Noah and Jada's score in the trivia game.
From the dot plot it is quite clear that the data form a bell-shaped curved or a normal curve.
For the normal distribution:
Mean = Median = Mode
Noah's mean score = 5
Jada's mean score = 3
The standard deviation of a data set is the measure of dispersion of the observations of that data set from their mean.
On closely studying the graphs we can see that the Noah and Jada's scores are almost at a same distance from the mean, i.e. the spread of Noah's score is same as the spread of Jada's score.
So, the correct statements are:
b. The standard deviation of Noah's scores is equal to the standard deviation of Jada's scores.
c. The mean of Noah's scores is greater than the mean of Jada's scores.
e. Using only Noah's scores, the mean is equal to the median
Answer:
A. -8
B. -8
C. 20
Step-by-step explanation:
For this case we have the following equation:
We want to clear x:
For this we must follow a series of steps, the first consists of adding 4x to both sides of the equation to obtain:
In this way, the variable term remains on one side of the equation.
Thus, the first step will be:
Add 4x to both sides
Answer:
Option D
Answer:
1.8
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
2.8 - 4 ÷ 4
<u>Step 2: Evaluate</u>
- Division: 2.8 - 1
- Subtraction: 1.8
