Answer:
b
Step-by-step explanation:
i a math and sciencie king trust me
Maryann scored a 96, 93, 97 and 92 on four of her Math Quizzes. In order to receive honor roll, she must have an average of at least 95 on all five math tests. What score must she get on the fifth test to achieve honor roll?
Does anyone know the steps to solve this?
Answer:
94.5 or 95 :)
Step-by-step explanation:
This question is basically asking; "What is the mean of these numbers?"
Mean is the sum of all the numbers, divided by how many numbers there are.
96+93+97+92=378
378/4=94.5
(94.5 rounded is 95 in case you need that.)
I hope this helped! (I am so sorry if this is confusing or wrong!)
Melanie and her cousin Grace are arguing about who is the faster swimmer. The distance each can swim in a certain number of minutes is shown in the photo.
A photo of two swimmers is shown. The caption says Grace, three hundred twenty-five meters in five and a half minutes, and Melanie, three hundred meters in five minutes.
Question 1
Part A
How fast does Melanie swim?
Enter the correct answer in the box.
1 of 2
Find the unit rate of speed, which is meters per minute.
meters per minute.
Question 2
Part B
How fast does Grace swim? Round to the nearest tenth, if necessary.
Enter the correct answer in the box.
about
meters per minute.
( I NEED HELP NOW!!!! I WILL GIVE BRAINLIEST AND 25 POINTS!!
Note: I'll brainliest to who answers this correctly. Your teacher will grade your response to ensure you receive proper credit for your answer.
6. The box-and-whisker plot below shows the number of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School.
Two box and whisker plots are shown above a number line.
1.Where do the two sets of data overlap?
2.Find the IQR of each set.
3.Find the difference between the medians of the sets.
4.What number multiplied by the IQR equals the difference between the medians of the two sets?
Pls answer the 4 questions above and write an essay using the Box and Whisker plot I screenshotted. Don't forget, I'll brainliest!
1. They overlap in the 22-26 region, because of lines of both box and whisker plots are stacked on top of each other.
2. Set 1: Q1: 14 Q3: 22 IQR\(=22-14=8\) Set 2: Q1: 26 Q3: 34 \(IQR=34-26=8\)
3. M is the median. So, \(M_2-M_1=30-18=12\)
4. We have \(8x=12\). Solving for x, we get \(x=\frac{12}{8}=1 \frac 12\)
Rewrite 24a5b + 6ab2 using a common factor.
6ab(2a5b + ab2)
3ab(8a4 + 2b)
6ab(12a4 + 2ab2)
8a5b(4 + 3ab2)
Answer:
6ab(4a⁴+b)
Step-by-step explanation:
24a5b+6ab²
Hcf is 6ab
24a5b+6ab²
6ab(4a⁴+b)
Natalie walked 3/5 mile in 1/2 hour. How fast did she walk, in miles per hour?
Answer:
Too fast for me.
Step-by-step explanation:
Which figure has exactly one line of symmetry? A rhombus, pentagon, rectangle and triangle are shown. A. Rhombus B. Pentagon C. Rectangle D. Triangle
Answer: The figure that has exactly one line of symmetry is B. Pentagon.
Step-by-step explanation: A line of symmetry is a line that divides a figure into two congruent halves that are mirror images of each other. A figure can have zero, one, or more lines of symmetry depending on its shape and orientation. To find the lines of symmetry of a figure, we can use a paper folding method or a reflection test. A paper folding method involves folding the figure along a line and checking if the two halves match up exactly. A reflection test involves reflecting the figure over a line and checking if the image coincides with the original figure.
Using either method, we can see that:
A. Rhombus has two lines of symmetry: one diagonal and one vertical.
C. Rectangle has two lines of symmetry: one horizontal and one vertical.
D. Triangle has either zero or three lines of symmetry depending on the type of triangle. An equilateral triangle has three lines of symmetry: one vertical and two bisecting the angles. An isosceles triangle has one line of symmetry: the perpendicular bisector of the base. A scalene triangle has no lines of symmetry.
B. Pentagon has either zero or five lines of symmetry depending on the type of pentagon. A regular pentagon has five lines of symmetry: each passing through a vertex and the midpoint of the opposite side. An irregular pentagon has no lines of symmetry.
Therefore, the only figure that has exactly one line of symmetry is B. Pentagon, but only if it is an isosceles pentagon.
Hope this helps, and have a great day! =)
help me plz can i have help
Answer:
6×\(10^{-4}\)
Step-by-step explanation:
HELP QUICKLY PLEASE AND THANKYOU!
In the elementary school, middle school, and high school, there are 107 teachers altogether. If 27% of the teachers work at the elementary school, 35% work at the middle school, and 38% work at the high school, How many teachers work at the elementary school, how many teachers work at the middle school, and how many teachers work at the high school?
Elementary school:
27% = 207/100 x 27 = 55.89 = 56 teachers
Middle school:
35% = 207/100 x 35 = 72.45 = 72 teachers
High school:
38% = 207/100 x 38 = 78.66 = 79 teachers
what do you think the deffinition of woman is ???
( Just something fun to see how people think of this. )
Answer:A woman is an adult female human. Prior to adulthood, a female human is referred to as a girl (a female child or adolescent). The plural women is sometimes used in certain phrases such as "women's rights" to denote female humans regardless of age.
Step-by-step explanation:
Answer:
An adult female human being.
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Congruent is the answer
A straight line is a function if it can be written in the form y = mx + b.
Question 1 options:
True
False
Can someone plz help me ASAP thxs
Answer:
352
Step-by-step explanation:
8 x 6 x 8 = 384
384- (4 x 1 x 8)
384-32=352
Calculate the area for each shape.
help me with this topic pls
(ignore the answer i chose for part b.)
Answer: (R= - 4,6) "arrow" (R= - 6,9)
(S= 6,2) "arrow" (S= 9,3)
(T= -6,-4) "arrow" (T= -9,-6)
you are correct!!!!!!!!!!!
have a great day <3
For a dilation centered at the origin with a scale factor of 3/2:
(a) original coordinates → final coordinates
R (-4,6) → R' (-6,9)
S (6,2) → S' (9,3)
T (-6,-4) → T' (-9,-6)
(b) (x, y) → ((3/2)x, (3/2)y)
How to determine a dilation mapping?To determine a dilation mapping, follow these steps:
Identify the center of dilation. This is the fixed point around which the dilation occurs.Determine the scale factor. The scale factor determines how much the image is stretched or shrunk. It can be a positive or negative number, but it cannot be zero.Apply the scale factor to each coordinate. To do this, multiply each coordinate by the scale factor, with the center of dilation as the origin.For example, if the center of dilation is (2, 3) and the scale factor is 2, the dilation mapping can be expressed as:
(x, y) → (2(x-2), 3(y-3))
This means that every point (x, y) is transformed into the point (2(x-2), 3(y-3)) after the dilation.
Find out more on scale factor here: https://brainly.com/question/2826496
#SPJ1
Image transcribed:
A dilation centered at the origin with a scale factor of 3/2 is applied to ΔRST.
The result is ΔR'S'T', as shown below.
(a) The arrows below show that the coordinates on the left are mapped to the coordinates on the right. Fill in the blanks to give the coordinates after the dilation.
original coordinates → final coordinates
R (-4,6) → R' (-6,9)
S (6,2) → S' (9,3)
T (-6,-4) → T' (-9,-6)
(b) Choose the general rule below that describes the dilation mapping ΔRST to ΔR'S'T'.
(x, y) → ((3/2)y, (3/2)x)
(x, y) → ((2/3)y, (2/3)x)
(x, y) → ((2/3)x, (3/2)y)
(x, y) → ((3/2)x, (2/3)y)
(x, y) → ((3/2)x, y)
(x, y) → ((3/2)x, (3/2)y)
(x, y) → ((2/3)x, (2/3)y)
(x, y) → (x, (3/2)y)
Hannah's car used 5 gallons to travel 220 miles. How many miles can the car go for each gallon of gas?
These two figures are similar. Find the length of side y.
Answer:20
Step-by-step explanation:
PLS PLS ANSWER 8,9 I WILL GIVE BRAINLIEST
Answer:
I gotchu!!
Step-by-step explanation:
-4.5<-1.5 (-1.5 is closer to 0 on a line.)
the opposite of 7 >-9 is -9>7
13 points if you can help....Using a map, Harriet measured the distance between two cities as 275 miles. The actual distance is 250 miles. What is the percent error
Answer:
The percent error
10%
Step-by-step explanation:
275 - 250 = 25
25/250 = 0.1
0.1*100 = 10%
Answer: 10%
Step-by-step explanation:
can someone help me?
⇒ ∠1 and ∠2 are angles lying on a straight line.
⇒This simply means that the sum of ∠1 and ∠2 since the straight line forms an angle of 180°
∠1+∠2=180°
⇒It is given that the measure of ∠2 is 60° more than ∠1
This means that to get ∠2 you have to add 60° in ∠1
As a conclusion we can say that ∠2=∠1+60°...(second equation to get ∠2)
⇒In the equation ∠1 +∠2=180°
⇒Substitute the value of ∠2 which is (∠1+60°)
∠1+(∠1+60°)=180°
⇒Now simplify to get the value of∠1
∠1+∠1=180°-60°
2(∠1)=120°
Note I got 2(∠1) since ∠1+∠1= 2× (∠1)
\(2( < 1)=120\\\frac{2( < 1)}{2} =\frac{120}{2} \\ < 1=60\)
∠1 =60°
⇒Note from what we have now we can also get the value of∠2 but we were not asked to get it. Therefore we will not.
Need helpp fastt plss will give brainliest to who is correct plss helpp!!!!!!!!! It a test I need good grades PLSSSS HELPPPPP!!!!!!!!!!
Answer:
It takes 3 minutes to make each sculpture.
He used 5 balloons per sculpture.
Step-by-step explanation:
To find the minutes you would divide 96 by 32 and to find the number of balloons you would divide 160 by 32.
Answer:
Im guessing 2
Step-by-step explanation:
160 - 96 = 64
64 / 32 = 2
Im not really sure Im trying
Amanda earns 53 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells.
Let A be the amount (in dollars) that Amanda earns in a week if she sells B books.
Write an equation relating A to B. Then use this equation to find the amount of money Amanda earns if she sells 15 books.
Step-by-step explanation:
The equation relating A to B is:
A = 53 + B
To find the amount of money Amanda earns if she sells 15 books, we substitute B = 15 into the equation:
A = 53 + 15 = 68
Therefore, Amanda earns 68 dollars if she sells 15 books.
Answer:
The equation relating A to B is:
A = 53 + B
This is because Amanda earns $53 each week without selling any books, and earns an additional $1 for each book she sells.
To find the amount of money Amanda earns if she sells 15 books, we simply plug in B = 15 into the equation:
A = 53 + 15
A = 68
Therefore, if Amanda sells 15 books in a week, she will earn $68
Percentages
Gunpowder contains 75% nitre and 10% sulfur. Find the amount of gunpowder which carries 9 kg nitre. What amount of gunpowder would contain 2.3 kg sulfur?
Answer:
Let the amount of gunpowder that contains 9 kg nitre be x kg. ∴ The amount of gunpowder containing 9 kg nitre is 12 kg.
So, about 200 kg gunpowder
Make like units, and then add. *
1/6+3/4
Answer: it’s 11/12, or
0.912
Step-by-step explanation:
Answer: 11/12
Step-by-step explanation:
A graph titled Population of Ohio has years on the x-axis and population (millions) on the y-axis. Points are at (1930, 7), (1950, 8), (1970, 10.5), (1990, 10.8), (2010, 11.8). What is the purpose of using a scatterplot? Check all that apply. to organize bivariate data to plot points to connect a line to plot points for two sets of data to compare dependent and independent variables to visualize relationships between data to find the slope between two variables
Answer:
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please help me with this get more math question.
Answer:
\(400x^{2}\)
Step-by-step explanation:
Factor the coefficent which is just the number parts of these terms.
(800 and 1200)
you find that both have a factor of 400 in common but many other numbers as well. You choose the highest number because you need to find the greatest common factor.
Then, you look at the variables. y is immediately incorrect since one of the terms do not have y. You look at x. Again, you can factor \(x^{2} and x^{3}\) into x*x and x*x*x. Since there can only be 2 x in common, your variable gcf is \(x^{2}\)
You buy 3.18 pounds of apples, 1.35 pounds of oranges, and 2.03 pounds of pears. What is your total bill?
Answer:
Roughly around $7.53
Step-by-step explanation:
find area of the shaded region use 3.14 for pi
Answer: The area of the shaded region is 50.24 square centimeter
Step-by-step explanation:
The given parameters are: -- the diameter of the big circle -- the diameter of the small circleStart by calculating the area of the big circle, using:So, we have:Next, calculate the area of the small circle, using:So, we have:The difference between the areas is the area of the shaded region.So, we have:Substitute known values Hence, the area of the shaded region is 50.24 square centimeter
When the temperature on Earth drops abruptly, the land cools down faster than the sea.
Which property of water allows water to be resistant to sudden temperature changes?
Choose 1 answer:
(Choice A) Adhesion
(Choice B) High specific heat capacity
(Choice C) Surface tension
(Choice D) Density
Answer:
High specific heat capacity
Step-by-step explanation:
Specific high heat capacity causes rapid or sudden temperature changes
Answer:
High specific heat capacity
Step-by-step explanation: :/
Is the relation shown below a function? Explain.
(4, 16), (5, 25), (3, 9), (6, 36), (2,4), (1, 1)
Answer:
Yes. Each input corresponds to exactly one output.
This function is f(x) = x^2.