Answers
Given:
Total number of students = 20
The marks of the students are 40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37 and 40.
To find:
The frequency distribution table with class size 10.
Solution:
We have, the marks of 20 students.
40, 22, 36, 27, 30, 12, 15, 20, 25, 31, 34, 36, 39, 41, 43, 48, 46, 36, 37, 40
Here,
Minimum value = 12
Maximum value = 48
We nee class intervals of size 10. So, the required class intervals are 10-20, 20-30, 30-40, 40-50. In these intervals, lower limit is excluded but the upper limit included.
The required frequency distribution table is
Class intervals Marks Frequency
10-20 12, 15 2
20-30 22, 27, 20, 25 4
30-40 36, 30, 31, 34, 36, 39, 36, 37 8
40-50 40, 41, 43, 48, 46, 40 6
Total 20
Therefore, the frequency distribution table is
Class intervals: 10-20 20-30 30-40 40-50 Total
Frequency : 2 4 8 6 20
Related Questions
solve the following equation: 7/8 = -7
Answers
Answer:
lets just say -8
Step-by-step explanation:
Find the indicated term of each arithmetic sequence. 27th term: 59, 56, 53, 50....
Answers
Answer:
The 27th term is -22
Step-by-step explanation:
So we know 59 is the first term
and for every term, its -3
So multiply -3 by 27= -81
59-81
-22
Express this rate as a unit rate: $50 for 4 days of work. Note: You must label your unit rate.
Answers
Answer:
12.50 dollars per day
Step-by-step explanation:
This is a fraction equal to
50 dollars ÷ 4 days
We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 4
50 dollars ÷ 4
4 days ÷ 4
=
12.5 dollars
1 day
=
12.5 dollars
day
= 12.5 dollars per day
PLEASE ANSWER QUICKLY
Answers
Answer:
C. 5
Step-by-step explanation:
6=-3x+21
6=-3(5)+21
6=-15+21
6
Sven has 11 more than twice as many costumers as when started selling newspapers
He now has 73 customers.How many did he have when he started ?
Answers
Answer:31
Step-by-step explanation:
You take 73 and subtract 11 and get 62 then divide it by 2 and you get 31
62/2 =31 the answer is 31
Points T and D are located on a number line. Point T has coordinate negative 4 and point D has coordinate 8.
Find the length of T D
Answers
Answer:
12 units?
Step-by-step explanation:
Find the missing side length. WILL GIVE BRAINLIEST
Answers
Answer:
13.318
Step-by-step explanation:
i would go into all the work, but my hands will hurt from typing. Hope this helps
Which expression is equivalent to 3x + 6
Answers
Answer:
3x + 6 is equal to x + 2
Step-by-step explanation:
Answer: 3( x + 2)
Step-by-step explanation:
6
3x+6
3(x+2)
can somebody please help me with this and explain it?
Answers
Answer:
7. No, because the x-value 11 has two y-values pair with it.
8. Not a function
Step-by-step explanation:
If there is more than one y-values per x-value then it is not considered a function, same with Question 8.
8.)B it is not a function because the x values repeats (-3)
Hope this helps
Have a great day/night
Jim picks 16 quarts of berries. He needs 2 1/4 quarts to make a batch of jam. If he saves 2 1/2 quarts of berries to eat how many batches of jam can Jim make?
Answers
13.50/2.25 = 6
He can make 6 batches of jam!
able
10. Find the rate of change in the table below.
Show all work.
Х
18
20
22
24
4.5
у
5
5.5
6
Answers
Answer:
1/4
Step-by-step explanation:
.5/2=.25=1/4
On Saturday the farmer planted 10 rows of tomato plants with p plants in each row on Sunday the farmer planted 6 rows of pepper plants with p plants in each row. Which expression gives the total number of plants the farmer planted this weekend?
Answers
Answer:
Step-by-step explanation:
40
-x+y=-2 in slope intercept form
Answers
Answer:
y = x - 2
Step-by-step explanation:
Slope intercept form is: y = mx + b, where m is the slope and b is the y- intercept. In this question, we are given everything, and all we need to do is rearrange the terms.
-x + y = -2
Add x to both sides
y = x - 2
In this equation, the slope is 1 and the y intercept is -2.
Answer:
Step-by-step explanation:
Y = mx + b
Y = x -2 after adding x to both sides of equation
m = 1 and b = -2
3) 5.6 x 7.3
Use the expression to answer Rewrite the expression above using two whole numbers.
Answers
Explanation:
↓↓↓↓↓↓↓↓
First you had to multiply without the decimal points, and then you put the decimal point it should be the correct answer.
5.6 it has one decimal place.
7.3 it has one decimal place.
Therefore, the answer should be the two decimal places.
Answer⇒⇒⇒⇒⇒40.88
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
First of all, let’s answer this question just like that without converting anything:
5.6 * 7.3 = 40.88
So, we have our answer which is 40.88 but the question also tells us to answer this question using whole numbers instead of decimals so, what we are going to do is that we will multiply both 5.6 and 7.3 by ten so that we change them to 56 and 73.
Once we finish multiplying 5.6 and 7.3 together, we will take our answer and divide it by 100 (moving two spaces to the left of our answer) because we multiplied our two numbers by ten which is 2 decimal places do, when we get our answer, we will move back those two decimal places.
= 56 * 73
= 4088
= 4088 / 100
= 40.88.
So, in conclusion, we came up with the same exact answer!
Really glad that I could help and have a fantastic day!
Also, can you please mark my answer as the brainliest answer?
Thank you so much!
Pls help extra points
Answers
Answer:
9^7
Step-by-step explanation:
9 x 9 x 9 x 9 x 9 x 9 x 9 = 9^7
The "^" symbol means the number behind it is an exponent btw!
Solve:
3 (x + 4) - 5 (x - 1) < 5
Answers
Answer:
x＞6
Step-by-step explanation:
-2x+17＜5
2x＞12
x＞6
Directions: Match the product and quotients estimates below with the correct expression on the left
35 x 23
132168
173 X 18.4
999 208
998 x 211
11 10x20 170x180
11100020
11 1303170
11 1000 210
Answers
Answer:
Answer is in attached image.
Step-by-step explanation:
Given the expressions, for which we have to find the estimates as per the expressions on the left.
The given expressions are:
1) 35 [tex]\times[/tex] 23
2) 132 [tex]\div[/tex] 168
3) 17.3 [tex]\times[/tex] 18.4
4) 999 [tex]\div[/tex] 208
5) 998 [tex]\times[/tex] 211
Here, we need to find the rounded off numbers.
35 can be rounded to 40 and 23 to 20.
Therefore, equivalent to 35 [tex]\times[/tex] 23 is 40 [tex]\times[/tex] 20
132 can be rounded to 130 and 168 to 170.
Therefore, equivalent to 132 [tex]\div[/tex] 168 is 130 [tex]\div[/tex] 170.
17.3 can be rounded to 17.0 and 18.4 to 18.0.
Therefore, equivalent to 17.3 [tex]\times[/tex] 18.4 is 17.0 [tex]\times[/tex] 18.0.
999 can be rounded to 1000 and 208 to 210.
Therefore, equivalent to 999 [tex]\div[/tex] 208 is 1000 [tex]\div[/tex] 210.
998 can be rounded to 1000 and 211 to 210.
Therefore, equivalent to 998 [tex]\times[/tex] 211 is 1000 [tex]\times[/tex] 210.
The solution can be found in the attached image as well.
Which expression is equivalent to 4/9 times 7
Answers
Answer:
4/9 * 7 =3.11111111
Step-by-step explanation:
4/9 * 7 =3.11111111
Answer:
7 times 4/9
Step-by-step explanation:
Its simple lol
SOS HURRY 25 POINTS
A small business reported profits of 135% of the previous month's profit. If they profited $5,000 this month, then how much did they profit last month?
Answers
Answer:
5,000 / 1.35= 3,703.70 is last months profit
Step-by-step explanation:
I hope this helps :)
Are the triangles similar?
1.These triangles are not similar.
2.These triangles are similar by AA.
3.These triangles are similar by SAS.
4.These triangles are similar by SSS.
Answers
Answer:
Yes, the triangles are SIMILAR, not exact.
Step-by-step explanation:
None.
Answer:
yes
no
no
yes
Step-by-step explanation:
Find the value of x.
Answers
Answer:
x=34 degrees
Step-by-step explanation:
since angle TSU=4x then angle RSP=4x
4x-3x=x
angle PSQ=x
angle PQS=112 degrees (180-68=112)
triangle PSQ angles are x+x+112=180
2x-68
x=34 degrees
express 28x-35y=-7,inthe form ax+by+c=0and find the value of a,b,&c
Answers
Answer:
a = 28, b = -35 and c =7
Step-by-step explanation:
Given expression is :
28x-35y=-7
We need to express it in the form of ax+by+c=0 and then find the value of a,b and .
Adding 7 to both sides.
28x-35y+7=-7+7
28x-35y+7=0
or
28x+(-35y) +7=0
It is in the form of ax+by+c=0.
On comparing,
a = 28, b = -35 and c =7
2a - 3b = -11
a + 3b = 8
Answers
Answer:
b = 3 and a = -1
Step-by-step explanation:
You have your given equation:
2a - 3b = -11
a + 3b = 8
You need to find what a and b is.
To find b:
2a - 3b = -11
-2a - 6b = -16
I multiplied a + 3b = 8 by -2. When you multiply a number you have to multiply all of them. You have to choose a number that would cancel out all of a.
So now your equation would look like this when you solve for b:
2a - 3b = -11
-2a - 6b = -16
-------------------
a - 9 = -27 then you divide -9 to -27 which is 3 so b = 3.
To find a:
2a - 3b = -11
a + 3b = 8
I multiplied a + 3b = 8 by -1 and 2a - 3b = -11 by -1 as well.
Your equation will look like this when you solve for a:
-2a + 3b = 11
-1a - 3b = -8
------------------
-3a = 3 then divide -3 to 3 which is -1 so a = -1.
Check to see if you have the correct answer by plugging in the number you got for a and b into the equation and solve.
1. 2(-1) -3(3) = -11
-2 - 9 = -11
2. -1 + 3(3) = 8
-1 + 9 = 8
what is the sign of f on the interval -5
Answers
Answer:
f(x) = x3 - 3x + 1
f'(x) = 3x2 - 3 = 3(x2 - 1) = 3(x+1)(x-1)
Find the critical numbers: set f'(x) = 0
3(x+1)(x-1) = 0 x = 1, -1
Check the sign of f'(x) on either side of each critical number. If f'(x) is positive on an interval, then f is increasing on the interval. If f'(x) is negative on an interval, then f is decreasing on the interval.
+ l - l + sign f'(x)
-------------------------------------
-1 1
f is increasing on (-∞, -1) υ (1, ∞)
f is decreasing on (-1, 1)
A) options: liters, millileters
B)Options: millimeters centimeters meters kilometers
C) options grams, kilograms
Answers
B.) centimeters
C.) grams
The octahedron can be constructed from the repetitive folding of ___.
A. equilateral triangles
B. squares
C. regular pentagons
D. triangles
Answers
Answer:
Triangles
Step-by-step explanation:
hotgsosbsga aksnsusgsv
Answer:
A. EquilateralTriangles BRAINLIEST PLS
Step-by-step explanation:
Given: f(x) = 1/x+5 and g(x) = x - 2.
What are the restrictiorts of the domain of f(g(x))?
0 x4 -5
O X-3
OX= 2
There are no restrictions.
Answers
Answer:
The restriction of the domain of f(g(x)) is that x cannot be 3.
Step-by-step explanation:
The first step to solve this question is finding the function, replacing the values. So
[tex]f(x) = \frac{1}{x+5}[/tex]
[tex]g(x) = x - 2[/tex]
[tex]f(g(x)) = f(x - 2) = \frac{1}{x - 2 + 5} = \frac{1}{x - 3}[/tex]
The function is a fraction, which means that the restriction is that the denominator cannot be zero. So
[tex]x - 3 \neq 0[/tex]
[tex]x \neq 3[/tex]
The restriction of the domain of f(g(x)) is that x cannot be 3.
Round 0.00076511 to one significant figure
Answers
Answer: 0.0008
Step-by-step explanation: Hope this helps :)
Scale 1 in=8 feet
So 1.24 in =
Answers
Answer:
9.92 feet or 9 feet 11 1/16 inches
Step-by-step explanation:
1.24X8 feet=9.92 feet or 9 feet 11 1/16 inches
A
car travels 120 miles in 3 hours how far does the car travel in 1 hour
Answers
Answer:
200 miles
Step-by-step explanation:
Answer: i have no idea sorry
Step-by-step explanation: