Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Suppose you borrow money for a year at a simple interest rate of 7.2%. You pay $86.40 in interest. How much have you borrowed?
Answer:
$1200
Step-by-step explanation:
You want to know the amount borrowed at 7.2% if the simple interest for one year is $86.40.
InterestThe interest formula is ...
I = Prt
where P is the amount borrowed, r is the interest rate, and t is the number of years.
ApplicationUsing the given values, we have ...
86.40 = P·0.072·1
P = 86.40/0.072 . . . . . . divide by the coefficient of P
P = 1200
You have borrowed $1200.
Answer: 1200
Step-by-step explanation: Linear equation. 7.2x = 100(86.40). then divide by 7.2 on each side. x=1200
Find the value of x. please explain and show your work.
top(50) left side(24) bottom(32) right side (x)
Answer:
30
Step-by-step explanation:
use Pythagoras theorem
hypothenuse of bottom triangle =√24^2+32^2 = 40
x =√50^2-40^2 = 30
8th grade math i mark as brainliest
Answer:
1/9
Step-by-step explanation:
First spin is counted as 1/3 (greater than 4) then the second multiplies 1/3 by 1/3 since there's a second spin. You don't reset the odds, they add on.
I'm pretty sure its 1/9
You travel 234 miles in 4.5 hours. Find the speed you travel.
Which equation is represented by the phrase “one-fourth of a number, increased by eight equals sixteen”?
One-fourth n + 8 = 16
4 n + 8 = 16
4 n = 16
One-fourth n = 16
Answer:
One-fourth n + 8 = 16
Step-by-step explanation:
basically 1/4n +8=16
A quilter created the following shape to use in a block for a new quilt.
A six-sided figure with a large base of 10 and three-fifths inches. The side to the right of the base is 6 inches. The small side parallel to the base is 4 and one-fifth inches. There are two sides that form a point at a right angle. The smaller is 4 inches, and the larger is 5 inches.
What is the area of the shape for the quilt block?
seventy-three and three fifths in2
forty-one and four fifths in2
eighty-three and three fifths in2
one hundred forty-seven and one fifth in2
Answer:43
Step-by-step explanation:
you add
this one is mildish please hepl
4. At Rory’s school, students must join one after-school club. Based on the data in Graph #2, which club attracted about 30% of students?
A. yearbook
B. art
C. drama
D. hiking
E. running
F. science
5. Approximately What percent of students chose not to join the yearbook club?
A. 15%
B. 30%
C. 75%
D. 85%
E. 90%
6. About what percent of students joined the art club?
A. 30%
B. 25%
C. 20%
D. 15%
E. 5%
What is the area of the shaded region in the figure? Hurry please!!!! And please answer with no links, thanks!!
Answer:
69.66 meters squared.
WHAT TO DO:
Subtract the area of the circle from the area of the square and you’ll get the area of the shaded regions.
SQUARE:
18x18=324
CIRCLE:
A=π9sqaured
A=254.34
324-254.34=69.66 meters squared
help me, please math is hard
Answer:
50
Step-by-step explanation:
70% of 50 is 35
and 30% of 50 is 15
and 35-15 is 20
Answer:
15
Step-by-step explanation:
- 1/9x+2.4=6 what is x
Determine the value of x
Answer:
10
Step-by-step explanation:
Answer:
x=10
Step-by-step explanation:
Write one polynomial for each description
Answer:
Step-by-step explanation:
Trinomial should have only three terms
Binomial should have only two terms
Monomial should have only one term
\(21) x^{3} - 2x + 1\\\\22) 3y^{4} - 2y^{3} + 9y -2\\\\23) b^{5} + 2b\\\\24) z^{3} + 5z^{2} + 8z - 25\\\\25) r^{n}\)
These table of values represent continuous functions. For which function will the y values be the greatest for very large values of x?
3. The equation of the line on the graph below is a direct variation equation. What is the constant of variation? (Image: The graph of a line on a coordinate grid is shown connecting the points (-4, - 1), (0,0) (4, 1))
A.1/4
b.1/2
c.3/4
d.1
Answer: 1/4 or 1/2.
Step-by-step explanation:
An indoor soccer field can be rented for personal use. The total cost for renting the field can be found by using the equation y = 225x + 200. The x-variable is the number of hours the field is being rented, the constant is the flat rate for renting the field, and the y-variable is the total cost, in dollars.
Which statement is true based on the given equation?
A:The equation shows a linear relationship, but not a proportional relationship.
B: The equation shows a linear relationship and a proportional relationship.
C:The equation does not show a linear relationship or a proportional relationship.
D:The equation shows a proportional relationship, but not a linear relationship.
Answer:
A
Step-by-step explanation:
I took the test·ω·
An indoor soccer field rented for personal use. The total cost for renting the field found by using the equation y = 225x + 200. The statement is true based on the given equation is, The equation shows a linear relationship, but not a proportional relationship, So option A is correct
What is the equation of line?The equation of a straight line is a relationship between x and y coordinates, The general equation of a straight line is y = mx + c, where m is the slope of the line and c is the y-intercept.
Given that,
The total cost for renting the field found by using the equation y = 225x + 200
x-variable is the number of hours the field is being rented
the constant is the flat rate for renting the field
y-variable is the total cost
As we know that,
given equation is a equation of straight line, so this relationship is a linear
But,
when X is Zero, value of is not Zero
so both variable are not proportional.
Therefore, we can say that equation has a linear relationship, but not a proportional relationship
To know more about Line check:
https://brainly.com/question/17188072
#SPJ2
Please help I need it now, asap it's due in 5 mins.
Answer:
25
Step-by-step explanation:
\(105+3x=180 \\ \\ 3x=75 \\ \\ x=25\)
Answer:
The answer is 25 degrees
Step-by-step explanation:
If you subtract 180 - 105 then you get 75.
Then you divide it by 3.
One circle is 360 degrees thus half of it is 180.
If you know one angle is 105 degrees then subtract it from 180.
If the number is 3x then you have to divide it by 3 to get x alone.
Hope it helps! :)
a study is done to compare the fuel efficiency of cars. cars in group 1 generally get about 23 miles per gallon/ cars in group 2 generally get about 44 miles per gallon. compare the groups by their means. then make an inference and give a reason the inference might be true.
the mean for group [__] is less than the mean for group [__].
the cars in group [__] generally are more fuel-efficient.
the cars in group [__] may be smaller
Answer:
Step-by-step explanation:
the mean for group 1 is less than the mean for group 2.
the cars in group 2 generally are more fuel-efficient.
the cars in group 2 may be smaller
100 PTS PLS HELP PLS PLS PLS PLSPLSPLPLSSPLSPLSLS
Answer:
D
Step-by-step explanation:
Lets go through each answer choice and check if it is correct.
A: False. 50% of 70 is not 31.
B: False. 17% of 70 is not 17.
C: False. The fraction 8/70 does not simplify to 2/25.
D: Correct. The fraction 14/70 simplifies to 2/10.
Answer:
The answer is D, On average, 2 out of 10 adults visited the museum most frequently.
Step-by-step explanation:
You can find this out by finding out how many adults there was total. You would do 31+14+17+8=70 and the you can see that 14 went to the museum so it would be 14/70. This fraction simplifies to 2/10.
Why are the divisibility rules for 2, 3, and 5 very useful for determining prime and composite numbers
1. They are the smallest odd numbers
2. They add up to 10
3. They are prime numbers with nice divisibility rules
4. They multiply to 30
5. They can be multiplied together to make every number
Answer:
option 3.
Step-by-step explanation:
alright, ima explain each option.
1. "smallest odd numbers" 2 is an even number. that's out of the playing field.
2. "add up to 10" sure, they do add up to 10, but finding prime and composite numbers are all about division and multiplication.
3. this is true. 2, 3, and 5 are all prime numbers, and they have the nice divisibility rules. [ for 2, it has to be even, for 5, it has to end in 0 or 5, and 3 has to have the sum of its digits being divisible by 3. ]
4. they do multiply to 30, but this does not help break the composite numbers down.
5. we cannot make every number with just these. we can not multiply any other whole number to get 7 for per example, because it's a prime number.
sub to gauthmath sub reddit if ya can !
Pls Help I will give Brainliest!!!!!
find the lmc of 10 and 15
Answer: If you mean LCM, the LCM of 10 and 15 would be 30.
Step-by-step explanation:
The LCM of two non-zero integers, x(10) and y(15), is the smallest positive integer m(30) that is divisible by both x(10) and y(15) without any remainder.
please help!! I only have half an hour to do this or I fail math !!!
Bob is the supervisor for a window washing company. He goes to a job site to inspect the work and make sure his crew has washed all the windows on a 25-story building. The crew’s description of their work is shown below:
Start on 8 the floor
Up 6 floors
Descend 10
Above 2
Increase 15
Down 3
Ascend 7
Lessen 5 floors
Up 2
The opposite of -2 floors
Drop 15
Descend 8
Ascend 10
Rising 6 floors
Decrease 2
Drop 3
Sink 2 floors
The opposite of -13
Decrease 7
Lower 14
Advance 1 floor
Increase 4
It is time for the crew to clock out for the day. What floors do they still have to finish? Explain how you solved it.
Answer:
8+6-10+2+15-3-7-5+2-15-8+10 = 5
Step-by-step explanation:
I know this question is not about math or science but my friends are saying the Leonardo DiCaprio when he was young is hotter than Zac Efron now and when he was young. I need y’alls opinions.
Who is hotter, young Leonardo DiCaprio or 35 year old Zac Efron? My pick is Zac Efron but I want some opinions.
Answer:
it's Zac Efron for sure, Leonardo DiCaprio is just not the same...
helpp pleasseeeee!??????
Answer:
B.
Step-by-step explanation:
Simply just take the coefficients of each term and write it in matrix form.
Answer:
1 0 10
3 - 9 7
Step-by-step explanation:
This is an augmented matrix
1x+0y = 10
3x - 9y = 7
The coefficient of x then y then the constant,
A row for each equation
1 0 10
3 - 9 7
Which list orders the numbers from least to greatest?
Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth
A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3
Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth
Hope my answer helps you✌️
how many even numbers are there between 19 and 61 answer asap!
Answer:
21
Step-by-step explanation:
A tree grows 1.5 feet per year. The tree is now 6 feet tall. Which sets of steps show ways to determine how many years the tree will take to be 27 feet tall?
Select the TWO correct answers.
A. 1.5x+6=27
1.5x=21
x=14
The tree will take 14 years to be 27 feet tall.
B. 27-6=21
21÷1.5=14
The tree will take 14 years to be 27 feet tall.
C. 1.5(x+6)=27
x+6=18
x=12
The tree will take 12 years to be 27 feet tall.
D. 1.5x+6=27
x+6=18
x=12
The tree will take 12 years to be 27 feet tall.
E. 27÷1.5=18
18-6=12
Answer:
Step-by-step explanation:
Answers are A and B.
Facts given are :
Current height = 6 ft
Growth per year = 1.5 ft
Final height = 27
Explanation for A:
Assume it takes 'x' number of years.
initial height + growth in 'x' years = Total height of the tree after 'x' years
6 + 1.5x = 27
1.5x = 27 -6 = 21
(1.5 can be written as 3/2) 3x/2 = 21
3x = 42
x = 14
hence, number of years = 14
Explanation for B:
After 'x' years,
Final height - initial height = Growth in 'x' years
27 - 6 = Growth in 'x' years
21=Growth in 'x' years = 1.5x
21= 3x/2
42=3x
14=x
hence, number of years = 14
how many least common multiples of 10 and 12 are there one or infinitely many- 20 points to answer quickly
Answer:
Step-by-step explanation:
Least Common Multiple of 10 and 12 = 60 Step 1: Find the prime factorization of 10 10 = 2 x 5 Step 2: Find the prime factorization of 12.