Answers
Answer:
Mean = sum of all observed values / sum of frequency
Mean= (1*2 +2*2 + 3*2 + 4*1 + 5*2 + 6*1) / (2+2+2+1+2+1)
Mean = 32 / 10
Mean = 3.2
Related Questions
Lily took a loan of $1200 with simple interest for as many years as the rate of
interest. If she paid $432 as interest at the end of the loan period, what was the
rate of interest? *
Answers
Answer:
sax
SI = $432
P = $1200
rate = x
time = x
= 432 = t×p×r / 100
= 432 = x × 1200 × x / 100
= 432 = x × 12 × x
= 432 = 2x × 12
= 432/12 = 2x
= 6 = 2x
= 6 ÷ 2 = x
= 3 = x
The rate of interst is 3%
Step-by-step explanation:
2+3=8,
3+7=27,
4+5=32,
5+8=60,
6+7=72,
7+8=??
Solve it
Answers
Answer:
98
2+3=2*[3+(2-1)]=8
3+7=3*[7+(3-1)]=27
4+5=4*[5+(4-1)]=32
5+8=5*[8+(5-1)]=60
6+7=6*[7+(6-1)]=72
therefore
7+8=7*[8+(7-1)]=98
x+y=x[y+(x-1)]=x^2+xy-x
Answer:
2*3 + 3* 7 = 27
4*3 + 5* 4 = 32
....
7*6 + 8*7 = 98
or it could be :
2+3-1 = 5 -1 = 4 *2 = 8
3+7-1 = 10-1 = 9 *3 = 27
4+5-1 = 9-1 = 8 * 4 = 32
5+8-1 = 13-1 = 12 * 5 = 60
6+7-1 = 13-1 = 12 *6 = 72
7+8-1 = 15-1 = 14*7 = 98
Step-by-step explanation:
You have to spend less than $500 at the mall. Each pair of pants costs $25 and each shirt costs $10. Write an inequality to represent the situation. Let x represent the number of pants you buy and let y represent the number of shirts you buy.
Answers
Answer:
25x+10y<500
Step-by-step explanation:
Answer:
25x+10y<500
Step-by-step explanation:
25 times number of pants purchased plus 10 times number of shirts purchased must be less than 500
A sample of 80 high school senlors, 45% of which are female, were surveyed as to whether or not they are employed
outside of school. 25% of the boys surveyed sald they are not employed. How many boys are employed?
Answers
Answer:
33 boys
Step-by-step explanation:
Since 45% of the participants were female and there were a total of 80 students, 36 of the 80 students were female. That means that 44 of the students were male.
25% of 44 is 11. So there are 11 boys that are not employed. From there you can just subtract 44 - 11 and get 33.
33 boys are employed
Answer:
33 students
Step-by-step explanation:
Let's take this step-by-step. First, we know that the sample includes a total number of 80 high school students, and 45% of them are female.
This means that 55% of them are male students, which is required to answer the question. 80 × 0.55 = 44 male students.
Next, 25% of the male students are not employed. This means that 75% of the male students are employed. So, 44 × 0.75 = 33 male students.
A robot's height is 120 centimeters. How tall is the robot in millimeters? Record your answer and fill in the bubbles on your answer document, Be sure to use the correct place value.
Answers
I need help simplifying it
Answers
Answer:
D: 13b^3 - 18b^2 - 7b + 12
Step-by-step explanation:
First expand the brackets by multiplying (10b^2+7b-3) by -1
Then rearrange the terms so you can see where you have to add them together.
Then simplify
72 paper clips decreased by 63% paper clips
Answers
Answer:26
Step-by-step explanation:
got a decimal but you cant have a decimal of a paper clip
Answer:
72 x 63% = 45.36 paper clips
or; 72 x .63 = 45.36 paper clips
either one will work...
Step-by-step explanation:
have a good day
The tallest mountain in the world is Mt. Everest. It is about
140% as tall as the tallest mountain in the United States. Mt. Mckinley.
Write 140% as a mixed number in simplest form.
Answers
Answer:
7/5
Step-by-step explanation:
140 by 100
cutting methord
cut the zeros, then divide by 2.
What is the leading coefficient of this polynomial?
f(x) = 3x2 -
175 + 7x10
Answer here
Answers
Answer:
7
Step-by-step explanation:
Because it is the coefficient that has the variable with the greatest exponent
Need do find the domain and range
Answers
Answer:
So
Domain: (-∞,∞)
Range: [[tex]-\frac{105}{8} ,[/tex]∞)
Step-by-step explanation:
Answer:
Domain: (-∞,∞)
Range: [-105/8,∞)
Step-by-step explanation: Hope this helps.
A store donated cases of crayons to a day care center. Each case holds 24 boxes of crayons; each box holds 8 crayons. How many crayons did the center receive?
Answers
Answer:
They recieved 192 crayons?
Answer:
The Answer Is 192
Step-by-step explanation:
HELP MEEEE PLEASEEEEEEEEEEEEEE
Answers
Answer:
a = 4
Step-by-step explanation:
a^2 + b^2 = c^2
a= ?
b= 3
c= 5 (c is always the hypotenuse)
*plug in given values
a^2 + 3^2 = 5^2
a^2 + 9 = 25
-9 -9
a^2 = 16
*find the square root
sqrt(a) = sqrt(16)
a = 4
Answer:
a = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] Pythagorean Theorem: a² + b² = c²
a is a leg b is another leg c is the hypotenuseStep-by-step explanation:
Step 1: Define
Leg a = a
Leg b = 3
Hypotenuse c = 5
Step 2: Solve for a
Substitute in variables [Pythagorean Theorem]: a² + 3² = 5²[Subtraction Property of Equality] Isolate a term: a² = 5² - 3²Evaluate exponents: a² = 25 - 9Subtract: a² = 16[Equality Property] Isolate a: a = ±4Since we are dealing with a regular right triangle and not a quadrant triangle, we use the positive root.
∴ a = 4
The perimeter of a triangle is 17 inches. One side is 5 inches, and another is 4 inches. What is the length of the third side?
Answers
Answer:
8inches
Step-by-step explanation:
Length of the third side = perimeter - ( side1 + side2 )
= 17 - (5+4)
= 17 - 9
= 8 inches
Over a 10-year period, Snow City had a snowfall of 478 inches. The snowfall during the past year was 56 inches. If the variable s stands for the total amount of snow for the other 9 years, which would be a reasonable value for s? A. 0.6 inches B. 420 inches C. 730 inches O D. 11 inches
Answers
Answer:
b.
Step-by-step explanation:only reasonable answer if you are subtracting 56 and attempting to estimate to the closest value. my guess, not TOTAL aswer,
A bookstore carries 70 magazines. 70% of the magazines are women's magazines. How
many women's magazines does the bookstore carry?
Answers
( 70/100)*70 =
( 70*70)/100 =
4900/100 = 49
They have 49 women’s magazines
Answer:
49
Step-by-step explanation:
70% of 70 = 0.7 × 70 = 49
the product of 8 and a number is 25 less than twice that number. find the number
Answers
Answer:
i dont know sorry
Step-by-step explanation:
in triangle pqr the measure of r=90 rp=3.7 and pq=9.5 find the measure of <Q to the nearest tenth of a degree
Answers
Answer:22.9
Step-by-step explanation:
Find the missing side in the right triangle. Round to the nearest hundredth.
14
9
х
Answers
Answer:
hope it helps it is donr by using pythogorous theorem
The third side of the right triangle is 10.72 unit.
What is Pythagoras theorem?Pythagoras' Theorem states that the square of the hypotenuse side in a right-angled triangle is equal to the sum of the squares of the other two sides.
Given, the side of right triangle is;
Let H be hypotenuse = 14
And P be perpendicular = 9
Then to find third side base be B,
we use the Pythagoras theorem;
(H)² = (P)²+(B)²
Rearranging,
(B)² = (H)² - (P)²
(B)² = (14)² - (9)²
(B)² = 196 - 81
(B)² = 115
B = 10.72 unit.
Therefore, the third side is 10.72 unit.
To learn more about the Pythagoras theorem;
https://brainly.com/question/343682
#SPJ2
Help please!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
The cost of one large pizza at your favorite pizza place is $15.99. The pizza place offers 21 different toppings. Each additional topping on a large pizza costs $2.75. Write an equation To represent the total cost for a pizza with any number of toppings, then find out what the pizza will cost if you add 7 additional toppings?
Answers
2. 15.99+(2.75 * 7)
= 15.99+19.25
=35.24
Matilda recently took a statistics quiz in her math class. in one question, 45 of 900 visitors at a local craft show were surveyed about the cost of admission to the show. Matilda incorrectly stated that the sample in this situation was represented by 900 visitors at the craft show.
a. what is Matilda's error?
b. what is the actual sample?
Answers
Answer:
A. Her error was that she thought that they were surveying the whole town so 900 would be the sample.
B. The actual sample is 45.
Step-by-step explanation:
The actual sample is 45 because 45 people out of the 900 visitors (population) were surveyed.
pls help plsssssssssssssssssssssssssssssssssss
Answers
Answer:
i belive its 1
Step-by-step explanation:
Because its SUM so its adding and the sum is 22 and 20+2=22.
A shade of green paint is made by mixing 2 cups of
yellow with 3.5 cups of blue.
Will a mixture that is 3 cups of yellow and 4.5 cups of
blue be more blue, more yellow, or the same shade of
green?
More blue
More yellow
Same shade
Explain your reasoning.
Answers
Answer:
7
Step-by-step explanation:
2×3.7=7 is easy and less money
Find the average rate of change of the function f(x) = -1x^2-7x-8 over the interval (1, 3).
Answers
Answer:
[tex]\displaystyle -11[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightDistributive Property
Algebra I
Interval NotationAverage Rate of Change: [tex]\displaystyle \displaystyle \frac{f(b) - f(a)}{b - a}[/tex]Step-by-step explanation:
Step 1: Define
f(x) = -x² - 7x - 8
(1, 3) → a = 1, b = 3
Step 2: Find Average Rate
Substitute in variables [Average Rate of Change]: [tex]\displaystyle \displaystyle \frac{f(3) - f(1)}{3 - 1}[/tex][Change] Substitute in function: [tex]\displaystyle \displaystyle \frac{[-(3)^2 - 7(3) - 8] - [-(1)^2 - 7(1) - 8]}{3 - 1}[/tex][Change] [Fraction] [Brackets] Evaluate exponents: [tex]\displaystyle \displaystyle \frac{[-9 - 7(3) - 8] - [-1 - 7(1) - 8]}{3 - 1}[/tex][Change] [Fraction] [Brackets] Multiply: [tex]\displaystyle \displaystyle \frac{[-9 - 21 - 8] - [-1 - 7 - 8]}{3 - 1}[/tex][Change] [Fraction] [Brackets] Subtract: [tex]\displaystyle \displaystyle \frac{[-38] - [-16]}{2}[/tex][Change] [Fraction] [Distributive Property] Distribute negative: [tex]\displaystyle \displaystyle \frac{-38 + 16}{2}[/tex][Change] [Fraction] Add: [tex]\displaystyle \displaystyle \frac{-22}{2}[/tex][Change] [Fraction] Divide: [tex]\displaystyle -11[/tex]Answer:
Step-by-step explanation:
-1x^2-7x8
-1x^2-7x+8
-1x+8-7x
+1x +1x
----- ------
X -7x
8 -7x
---- -----
+7 +7
---- -----
15 1x/x
15 1x
---- -----
1 X
X=15
Before you do the actual work you have to study your times table that way it helps you to be fast and it will help you to work good underpressure when it comes to integers.
What you do to one side you do to the other.
do kramagat dhanatmak purnanko ka yog 145 hai purnank gyat kijiye
Answers
Answer:
hssssskwkwkkkayak toa
ehekkekekekek
eemeeememe
Step-by-step explanation:eeekekekee dd ejndkekd3kd3kd3kd3kdb3
wkwdwugudhwkwkwkekekwkwka,akkKKkKSNBEVEVVRTTVKALALALAL
Answer:
72, 73
Step-by-step explanation:
माना दो क्रमागत धनात्मक पूर्णाक x और (x + 1) हैं |
इसलिए...
प्रश्नानुसार,
x + (x + 1) = 145
2x + 1 = 145
2x = 145 - 1
2x = 144
x = 144/2
x = 72
x + 1 = 72 + 1 = 73
9.999 round off to the nearest 1000
Answers
Answer:
0
Step-by-step explanation:
9.999 rounded to the nearest 1000 is 0
A car travels 88 miles in 1 hours
(with a constant speed). How far
can it travel in 2 hours (with the
same speed)?
Answers
Answer:
176 miles
Step-by-step explanation:
88x2=176
The sum of two numbers is 10. Their difference is 2. What are the numbers?
Answers
Answer:
6 and 4
Step-by-step explanation:
6+4 = 10
6-2 = 4
do you think this answer is referring to 11 or 12 ?
Answers
Answer:
11
Step-by-step explanation:
Write down the percentage multiplier to find 3% of a quantity
Answers
Answer:
0.03
Step-by-step explanation:
Hope this helps.