This line plot shows how many hours Ella practiced her flute this month. What is the difference, in hours, between the longest practice and the shortest practice?
Answers
Answer:
C
Step-by-step explanation:
Longest practice is 2 1/2 hours long
Shortest is 1 1/4 hours long
For difference, subtract 1 1/4 from 2 1/2
Convert mixed to improper fractions
(2*2+1)/2 - (1*4+1)/4
5/2 - 5/4
10/4 - 5/4 = 5/4
Change back to mixed fraction
1 1/4
Related Questions
(a+4)^(2)-(a-1)^(2) please solve this rn please i need it
Answers
Answer:
10a + 15
Step-by-step explanation:
(a+4)^(2)-(a-1)^(2)
(a+4)^(2)
(a+4)(a+4) = (a^2 + 8a + 16)
(a-1)^(2)
(a-1)(a-1) = (a^2 -2a + 1)
(a^2 + 8a + 16) - (a^2 -2a + 1)
a^2 + 8a + 16 - a^2 +2a - 1
10a + 15
Can someone who is good at math help me to do this?
10 points
Answers
Answer:
Yours: mean: 17; median: 17; mode: none
Friends: mean: 16.4; median: 17; mode: 20
You have the higher mean.
Step-by-step explanation:
a.
Your mean:
(18 + 16 + 19 + 15 + 17) / 5
= 17
Your median:
15 , 16, 17, 18, 19
= 17
Your mode:
15 , 16, 17, 18, 19
= No mode (no number comes up repeatly)
Your friend's mean:
(20 + 20 + 13 + 12 + 17) / 5
= 16.4
Your friend's median:
12, 13, 17, 20, 20
= 17
Your friend's mode:
12, 13, 17, 20, 20
= 20
b. Comparing your means, you have the higher mean
A raffle sold 2,000 tickets. What is the theoretical probability of NOT having the winning ticket? P(NOT winning ticket) =
Answers
Answer:
0
Step-by-step explanation:
you dont own any tickets, so how can you have any probability of winning? 2000 other people, or at least 2000 other tickets are owned by other people than you.
30 POINTS + BRAINLEST TO FIRST CORRECT EXPLAINED ANSWER!
Please make sure to answer all parts of the question. Answer if the equation is right, and how to solve. Thank you!
Answers
phone case. The phone case was $560
1. An unknown number of liters of mixture containing 6% boric acid is to be mixed with 2 liters of
a mixture which is 15% boric acid. The new solution created is to be at a concentration of 12%
boric acid. How much of the 6% solution must be used? Show all work.
Answers
Answer:
0.4
Step-by-step explanation
2/0.15+x/0.06=x+2/0.12
30=x/0.12+2/0.12
1.6+2x=x+2
x=0.4
Can the sides of a triangle have lengths 2.8, 19.1, and 19.4?
Answers
Answer:
Step-by-step explanation:
Yes
You almost have an isosceles triangle. The lengths of the longest line segments differ by by 0.3. So the base of the triangle is 2.8 and the long segments are connected to each other and each of them at end of 2.8
Which of the following numbers can be expressed as repeating decimals? 4/7, 2/5, 7/8, 4/9
Answers
Answer:
4/7 & 4/9
Step-by-step explanation:
4/7 <-------- repeating decimal/rational4/9 <-------- repeating decimal/rationalNumbers with a repeating pattern of decimals are rational because when you put them into fractional form, both the numerator a and denominator b become non-fractional whole numbers. ------------------------------- 4/9A repeating decimal is a decimal number that goes on forever. We want to know if the decimal number you get when you divide the fraction 4/9 (4 ÷ 9) is repeating or non-repeating.Here are the steps to determine if 4/9 is a repeating decimal number:1) Find the denominator of 4/9 in its lowest form.The greatest common factor (GCF) of 4 and 9 is 1. Convert 4/9 to its simplest form by dividing the numerator and denominator by its GCF:4 ÷ 1/ 9 ÷ 1 = 4/9Thus, the denominator of 4/9 in its lowest form is 9.2) Find the prime factors of the answer in Step 1.The prime factors of 9 are all the prime numbers that you multiply together to get 9. The prime factors of 9 are:3 x 33) Determine if 4/9 is repeatingA fraction is a repeating decimal if the prime factors of the denominator of the fraction in its lowest form do not only contain 2s and/or 5s or do not have any prime factors at all. This is the case here, which means that our answer is as follows:4/9= repeating------------------------------------------ 4/7A repeating decimal is a decimal number that goes on forever. We want to know if the decimal number you get when you divide the fraction 4/7 (4 ÷ 7) is repeating or non-repeating.Here are the steps to determine if 4/7 is a repeating decimal number:1) Find the denominator of 4/7 in its lowest form.The greatest common factor (GCF) of 4 and 7 is 1. Convert 4/7 to its simplest form by dividing the numerator and denominator by its GCF:4÷1/7÷1=4/7Thus, the denominator of 4/7 in its lowest form is 7.2) Find the prime factors of the answer in Step 1.The prime factors of 7 are all the prime numbers that you multiply together to get 7. The prime factors of 7 are:73) Determine if 4/7 is repeatingA fraction is a repeating decimal if the prime factors of the denominator of the fraction in its lowest form do not only contain 2s and/or 5s or do not have any prime factors at all. This is the case here, which means that our answer is as follows:4/7= repeatingTherefore, the fraction 4/7 and 4/9 can be represented as repeating decimals.Assume that lines which appear tangent are tangent 15 9 solve for x
Answers
Answer: -0.383864035
Step-by-step explanation: Tan(159) = -0.383864035
Evaluate the expression
9^4 x 9^-4
(Problem 8 in photo. Thank you!)
Answers
Answer:
1
Step-by-step explanation:
using the rules of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex] , [tex]a^{0}[/tex] = 1 , then
[tex]9^{4}[/tex] × [tex]9^{-4}[/tex]
= [tex]9^{(4+(-4))}[/tex]
= [tex]9^{(4-4)}[/tex]
= [tex]9^{0}[/tex]
= 1
Please help, this is the 2nd time posting this.
Answers
Answer:
HI = EF
Step-by-step explanation:
We are given that the sides GH and DE of the triangles are congruent. GH = DE
Also, we are given that the angles H and E are congruent.
H = E
Given that HI is congruent to EF, then the triangles are congruent, by Side Angle Side SAS
.
Transcribed Image Text:to the Tledrest tentn. A landscaper wants to place a stone walkway from one corner of the rectangular lawn to the opposite corner. The lawn is 23ft by 18ft. a.) What is the length of the walkway to the nearest foot? b.) If the stones cover one foot each how many stone will he have to buy to make sure the path is covered?
Answers
The length of the walkway is 24 ft, and you will need 24 stones to cover it.
What is the length of the walkway?
The length of the walkway will be equivalent to the hypotenuse of a right triangle with cathetus of 23ft and 18ft, so we can use the Pythagorean theorem to get it:
L^2 =(23fy)^2 + (18ft)^2
L = √( (23fy)^2 + (18ft)^2 ) = 23.77ft
The walkway is 23.77 ft long.
Rounding to the nearest foot, the length is 24 ft.
b) If each stone covers 1 ft, then you will need 24 stones.
If you want to learn more about right triangles, you can read:
https://brainly.com/question/2217700
How many odd 2-digit positive integers greater than 30 are there?
Answers
Answer:
There are 70 two digit numbers that are greater than or equal to 30
Step-by-step explanation:
hope it helps you
Answer:
35
Step-by-step explanation:
There are 100 -30 = 70 2-digit positive integers. Half of them are odd.
There are 35 odd 2-digit positive integers greater than 30.
__
Additional comment
For n = 1 .. 35, those numbers are 2n+29.
..........................................
Answers
Answer:
.................................
3) Dante bought groceries at Wegmans last weekend. His total was $50.24. The tax rate in Fredericksburg is 5,5%. How much did Dante actually spend at Wegmans?
Answers
Ex: 50.24*0.055=2.7632
50.24+2.76=$53.00
Answer: 53 dollars
I need help on this question so if u actually can answer it correctly and show how you got it that would be helpful thx
Answers
[tex] \rm \looparrowright - \frac{1}{4} (8 - 4 + 20x)[/tex]
Subtract the numbers
[tex] \rm \looparrowright - \frac{1}{4} (4+ 20x)[/tex]
Factor out 4 from the expression
[tex] \rm \looparrowright - \frac{1}{ \cancel4} \times \cancel4(1 + 5x)[/tex]
[tex] \rm \looparrowright - (1 + 5x)[/tex]
When there is a - in front of an expression in parentheses, change the sign of each term in the expression to -
[tex] \rm \looparrowright - 1 - 5x[/tex]
Thus, Options A and F are correct!!~What is the measure of ZXYZ?
X
112
y
A. 170
V
O B. 72°
55°
C. 55°
w
D. 36°
Answers
Answer: D. 36
Step-by-step explanation: Angle subtended by an arc at the centre is twice of the angle subtended at any point on the circle . And in the given diagram, angle subtended on the circle by arc XZ=60 degree . So arc XZ =2*60=120. Therefore measurement of arc xyz=360-120=240 degree.
The measurement of arc xyz is 240 degrees.
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
Angle subtended by an arc at the centre is twice of the angle subtended at any point on the circle .
In the given diagram, angle subtended on the circle by arc XZ=60 degree .
So arc XZ =2 times of 60
=2×60
=120.
The measurement of arc xyz=360-120=240 degree.
Hence, the measurement of arc xyz is 240 degrees.
To learn more on trigonometry click:
https://brainly.com/question/25122835
#SPJ7
Here is a system of linear equations
2x+3y=14
4x-3y=10
Which would be more helpful for solving the system: adding the two equations or subtracting one from the other?
Answers
Answer:
Adding the two equations
Step-by-step explanation:
2x+3y=14
4x-3y=10
_________
6x-0y=24
6x=24
x=4
see na too simple, u can find y using x=4 in any equation
What is the the decimal equivalent of 1/-4
Answers
Answer:
Step-by-step explanation:
1 / -4 = -0.25
(excuse my bad mouse drawing)
Find the measure of the missing angle .
Answers
Answer:
c = 99 and b = 81
Please help me do #4
Answers
Step-by-step explanation:
I solved it by steps...
I hope you understand...
a circled circumference is approximately 44cm
Complete each statement using one of these values : 7,11,14,22,88,138,154,196,380,616
Answers
Answer:
1. The circle’s radius is approximately 14 cm.
2. The circle’s radius is approximately 7 cm.
3. The circle’s area is approximately 154 cm2
Question:a circled circumference is approximately 44cm
Complete each statement using one of these values : 7,11,14,22,88,138,154,196,380,616, Answers without letters: 1. 14cm 2. 7cm 3. 154 cm2
This is my hw somebody please
Answers
Answer:
4 because the edges are like vertices.
please show calculations
Answers
Answer:
i can't understand can u show it carefully
Last week, Kip went to the fair. It costs $4.59 to enter the fair and $1.25 per ticket. In the equation below, x represents the number of tickets Kip bought, and y represents the total amount Kip spent. y = $1.25x + $4.59 If Kip spent $23.34 at the fair, how many tickets did he buy? A. 12 B. 15 C. 22 D. 19
Answers
Answer:
B.) 15
Step-by-step explanation:
Fist you want to plug in 23.34 as your Y. Next you want to subtract 4.59 from 23.34. Finally, to get the variable alone, divide the answer you got from subtracting by 1.25.
2.
D
3
In the diagram above, Z3 = 135º.
Find the measure of Z4.
24 = [?]
Answers
Answer:
<4= 45○
Step-by-step explanation:
Step by step explanation is found on pic.
Hope that Helps :)
Please help me ASAP
How many solutions are there to this system of equations?
tyy!
Answers
Answer:
looks like 2
Step-by-step explanation:
Points where two lines cross are solutions they share
What is the principal solution to the equation?
x^2=121
Pls explain for brainliest and a like
1.step by step
2. correct answer
3. clearly explained
Answers
Second step and correct answer: x= ± 11
Because: x^2 = x= ± √
what is the equation of the line with y intercept (0.8)and slope 3/5
Answers
Step-by-step explanation:
y = mx + b
m is slope
b is y-intercept
y = 3/5 x + 4/5
5y = 3x + 4
3x - 5y + 4 = 0
All three equations written above are correct, they are just in different formats :)
[tex]\mathbb{FINAL\;ANSWER:}[/tex]
[tex]\huge\boxed{\sf{y=\displaystyle\frac{3}{5} x+0.8}}[/tex]
[tex]\mathbb{SOLUTION:}[/tex]
Hi! Hope you are having a nice day!
[tex]\mathcal{GIVEN:}[/tex]
Slope of the lineThe line's y-intercept[tex]\mathcal{TO \ FIND:}[/tex]
The equation of the line using the given information[tex]\mathcal{PROCESS:}[/tex]
Should we write the equation of the line in Slope-Intercept Form or in Point-Slope Form?[tex]\mathcal{SLOPE-INTERCEPT\;FORM:}[/tex]
y=mx+bwhere m = slope of the linewhere b = y-intercept of the lineActually, we do have enough information to write the line's equation in Slope-Intercept form OR in Point-Slope Form.
However, let's write the equation in Slope-Intercept Form.
The y-intercept is 0.8, and the slope is [tex]\sf{\displaystyle\frac{3}{5} }[/tex].
Equation:y=mx+b
Plug m:
[tex]\sf{y=\displaystyle\frac{3}{5} x+b}[/tex]
Plug b:
[tex]\sf{y=\displaystyle\frac{3}{5} x+0.8}[/tex]
Hope you could understand everything.
#LearningIsFun
A car travels at a speed of 65 miles per hour. How far will it travel in 5 hours?
Answers
Answer: Distance = 325 miles
Step-by-step explanation:
Distance = speed*time
We can plug in the values given for time and speed:
Distance = 65 miles/h * 5 hours
Distance = 325 miles
Answer:
325 miles
Step-by-step explanation:
To find out how far the car will travel in 5 hours, we first need to know how far it will travel in one hour.
Well, we are given that information.
Since we know that the car travels 65 miles in 1 hour, we just have to multiply 65 by the number of hours it will drive, which is 5 in this case.
5 x 65 = 325
The car will drive 325 miles in 5 hours.
Estimate. About how many groups of 25 are in 95? How do you know?