Marcus was training for a 2,000 meter race. He had to alternate between running and walking.
Problem
If Marcus ran 1,600 meters, which statement is true?
Answer:
if marcus ran 1,600 meters that means he walked 400 meters
Step-by-step explanation:
The dot plots below show the test scores of some mathematics students and some science students: Two dot plots are shown one below the other. The top and the bottom plots have the title Mathematics Students and Science Students respectively. Below the line for each dot plot is written Mark. The markings on each line are from 30 to 50 at intervals of 1. For the top plot there are two dots each for 34 and 40 and 1 dot each for 32, 33, 35, 37, and 39. For the bottom plot there are 2 dots each for 43, 46 and 49 and 1 dot each for 41, 42, and 47. Based on visual inspection of the dot plots, which group of students appears to have the larger average score? The mathematics students The science students Both groups are similar. Not enough information is available to draw a conclusion.
Answer:
Science students
When you find the average both plots using median, mean, or interquartile range, you will find that the score for the science students will always be greater than the score of the mathematics students. This is because none of the mathematics students scored higher than the science students, so the mean will always be greater.
MATHEMATICS :
Plot interval = 30 to 50
MEAN :
(34*2) + (40*2) + (32*1) + (33*1) + (35*1) + (37*1) + (39*1) = 324
Sample size, n = (2 + 2 + 1 + 1 + 1 + 1 + 1) = 9
Mean = 324 / 9 = 36
BOTTOM :
SCIENCE :
MEAN : (43*2)+(46*2)+(49*2)+(41*1)+(42*1)+(47*1) =
406
SAMPLE SIZE = (2 + 2 + 2 + 1 +1 +1) = 9
406 / 9 = 45.111
Step-by-step explanation: hope this helps
6th grade math
(–27) ÷ (–9 ÷ 1/9)
[tex]\displaystyle\ \boldsymbol{(-27)\div(-9\div\frac{1}{9})=-27\div(-9\cdot9)=} \\\\\boldsymbol{-27\div-81=\boxed{\frac{1}{3}} }}[/tex]
find the nth term
16,25,36,49
So studying the sequence you could see that 4multiplying itself gives 16 and 5 by itself 25 , 6 by itself 36 , 7by itself 49 so by all means the next will be 8 by itself which is 64
Answer:
Hello,
Step-by-step explanation:
16=(1+3)²
25=(2+3)²
36=(3+3)²
49=(4+3)²
[tex]u_n=(n+3)^2\\[/tex]
Currently, Jacob’s mother is three more than nine times as old as Jacob. In eleven years, his mother will be five more than three times his age. Write a system of linear equations that models this situation. Let j represent Jacob's age, and let m represent his mother's age.
Write an equation that relates Jacob and his mother's current ages. Solve the system of equations.
What are their ages?
Answer:
Jacob is 4 years old and his mother is 40 years old.
Step-by-step explanation:
Part 1: The linear equations are and
Part 2: Solving the equations, we have, and
Part 3: Jacob is 4 years old and his mother is 40 years old.
Explanation:
Part 1: Let j represent Jacob's age, and let m represent his mother's age.
It is given that, "Jacob's mother is three more than nine times as old as Jacob". Writing it as linear equation, we have,
It is also given that, "In eleven years, his mother will be five more than three times his age". Writing it as linear equation, we have,
Simplifying this, we get,
Thus, the linear equation is
The linear equations are and
Part 2: Solving the linear equation, we get,
Substituting in
Simplifying, we get,
Hence,
Substituting in
Solving the equations, we have, and
Part 3: Since, j represents jacob and m represents the jacob's mother
Thus, Jacob is 4 years old and his mother is 40 years old.
Use the ratio table given in the image attached to solve this problem.
Lacy usually feeds 20 puppies at the shelter. How many ounces of food would 20 puppies need? (image attached)
Answer:
560
Step-by-step explanation:
140 ÷ 5 = 28
28 x 20 = 560
please mark me as brainliest and correct me if im wrong
You could either use the propotional method or unitary method, but I am going to be using the porpotional method since it is more quick.
Step 1
So first we would convert the numbers givin into a fraction by putting 5 over 140 and 20 over x which is the question mark.
Step 2
Then we would cross multiply, so multiply numbers that are diagonal to each other .140 would multiply with 20 and 5 would multiply with x.
Step 3
After we multiply (we do not multiply 5 with anything so it is just 5)we would have the equation , x times 5=2800. Since we need to isolate x we would take 5 and put it under 2800 so it would be 2800 divided by 5.
Step 4
After we divide 2800 by 5 we would have 560 which equals to x , making it the ounces needed to feed 20 animals at the shelter .
Summarise
To briefly explain this the way to find the answer would be 20x40 divided by 5.
Hope this helped :D
The equations x minus 2 y = 4, 4 x + 5 y = 8, 6 x minus 5 y = 15, and x + 2 y = 0 are shown on the graph below.
On a coordinate plane, there are 4 lines. Green line goes through (0, 0) and (2, -1). Blue line goes through (0, negative 2) and (2, negative 1). Pink line goes through (0.75, negative 2), and (2.5, 0). Purple line goes through (0, 1.5) and (2, 0).
Which system of equations has a solution of approximately (1.8, –0.9)?
6 x minus 5 y = 15 and x + 2 y = 0
4 x + 5 y = 8 and 6 x minus 5 y = 15
x minus 2 y = 4 and 4 x + 5 y = 8
6 x minus 5 y = 15 and x minus 2 y = 4
Answer:
Step-by-step explanation:
.1x7 8, 6
Answer:
its A on endg
Step-by-step explanation:
trust.
have yall noticed for the quiz that every answer so far is a (if ur on the same one i am, assuming we are)
State the domain & range!
Hi there!
»»————- ★ ————-««
I believe your answer is:
Domain: {-4, -3, 0, 2}
Range: {-2, -1, 1, 5}
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
The domain are all the given x-values in the function. The range are all the given y-values of the function.Usually in a table, the domain values are on the left and the range values are on the right.⸻⸻⸻⸻
Knowing This:
Domain: {-4, -3, 0, 2}
Range: {-2, -1, 1, 5}
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
what is the additive inverse of [tex]\frac{2}{3}[/tex]
A. 3/2
B. 0
C. -2/3
D. -3/2
show al your work please due very soon
Answer:
your answer is C. -2/3
Step-by-step explanation:
In mathematics, the additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite (number), sign change, and negation. For a real number, it reverses its sign: the additive inverse (opposite number) of a positive number is negative, and the additive inverse of a negative number is positive. Zero is the additive inverse of itself. In this case, -2/3 is the additive inverse of 2/3.
Which of the following expressions are equivalent to -\dfrac{2}{-13}−
−13
2
minus, start fraction, 2, divided by, minus, 13, end fraction?
Answer:
Step-by-step explanation:
We are given:
2
- ----------
-13
Since a negative number (-2) divided by another negative number results in a positive number,
2
----------
13
Both Answers A and B are correct; the final value in each case is +2/13.
The equivalent expression will be (-2)/(-13) and-(-2/13) so option (A) and option (B) both will be correct.
What is numerator and denominator?In such a fraction, the value that appears above the horizontal line is referred to as the numerator. It represents the number of pieces removed from the whole.
The denominator of a fraction is the numerical value that comes before the brings together various.
If we divide two numbers by each other then the upper word is called the numerator, and a lower word is called the denominator. For example a fraction 1/5 here 1 will be the numerator and 5 will be denominated.
Given that[tex]-\dfrac{2}{-13}[/tex] now since the multiplication of - and - quantity is always positive so - and - is positive so it will be 2/13
If you take both options A and B in both options the negative sign going to cancel and it will give a positive value.
Hence "The equivalent expression will be (-2)/(-13) and-(-2/13)".
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IM SO SORRY PLEASE HELP ME!!!
Answer:B,D i think that's it
Step-by-step explanation: lmk if it was right or wrong
12(43)
5 (88)
8 (63)
7 (28)
Please help me i tried to do this but I really don't get this can somebody help? plsssssssssssssssssssssssssssssss(sorry for spam)
Please solve A sloth moves at a rate of 6 feet per minute. The results are recorded in the table below.a) Determine whether the distance the sloth moves is proportional to the time it moves by graphing on the coordinate plane. Explain your reasoning.b) Write an equation for the line.
Answer:
A) Yes, it is proportional since on the table, 1 minute is 6 feet, 2 minutes is 12 feet and if you divide both 2 and 12 by 2 then you get 1 and 6.
the slope is 6, y=6x
B) y=6x
Step-by-step explanation:
If Susan can read 40 pages in 12 minutes, how many pages can she read in 50 minutes?
The key on a map says 2 inches equals 7 miles. If two cities are9 inches apart on the map, how far apart are they in real life?
Answer:
Ans(1) 167 (rounded off)
ans(2) 32 (rounded off)
Step-by-step explanation:
1. Pgs read in 12 mins= 40
Pgs read in 1 min= 40/12 =10/3
Pgs read in 50 mins= 10/3 ×50= 166.6
So, when rounded off, Susan can read 167 pgs in 50 mins./ (ans)
2. 2 inches distance= 7 miles
1 inch distance= 7/2 miles
9 inches distance= 7/2 × 9= 31.5
so, when rounded off, the cities are 36 miles apart in real life/ (ans)
The measures of two angles in a triangle are 32o and 78o. Which of the following equations could be used to find the measure of the third angle, x?
(the ¨o¨ is a degree symbol)
180−32+78=x
180−32=x−78
180−(32+782÷2)=x
32+78+x=180
Answer:
32+78+x=180
Step-by-step explanation:
All triangle angles add up to 180, so add 78 and 32 then subtract it from 180 to get x, which in another form is 32+78+x=180.
Answer:
32 + 78 + x = 180
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 given angles and equate to 180, that is
32 + 78 + x = 180
A circle is cut from a square piece of cloth, as shown:
A square, one side labeled as 42 inches has a circle inside it. The circle touches all the sides of the square. The portion of the square outside the circle is shaded.
How many square inches of cloth are cut from the square? (π = 3.14)
131.88 in2
168.00 in2
1,384.74 in2
1,764.00 in2
Answer:
A
Step-by-step explanation:
I think you are supposed to do is 42x3.14=131.88 so the answer is 131.88
hope this helps :)
Answer:
Step-by-step explanation:
Given the choices of answers we have to consider that:
The cloth is cut from the square = Area of circle
Area of circle = π r² = 3.14 * 21² = 1,384.74 in²
The scatter plot shows the number of pumpkins that have been picked on the farm during the month of October:
A scatter plot with points showing an upward trend with points that are moderately spread out from a line of best fit. The y axis is labeled Number of Pumpkins and the x axis is labeled Days in October
Part A: Using computer software, a correlation coefficient of r = 0.51 was calculated. Based on the scatter plot, is that an accurate value for this data? Why or why not? (5 points)
Part B: Instead of comparing the number of pumpkins picked and the day in October, write a scenario that would be a causal relationship for pumpkins picked on the farm. (5 points)
Part A: The correlation coefficient of r = 0.51 is accurate based on the scatter plot given.
Part B: A scenario that would be a causal relationship can be quantity of fertilizer used vs kg of pumpkins picked on the farm.
What is a Scatter Plot?The association between two variables that are correlated can be shown by a scatter plot which has a trendline along which the data points are located.
If the trendline slopes upwards from the left to the right, it shows a positive correlation and vice versa.
Also, if the farther the data points are to each other along the trendline, the farther is it the correlation coefficient, r, is from 1 or -1. If they are moderately apart,, the correlation coefficient would be somewhere around 0.5/-0.5 and 0.65/-0.65, as the case may be.
Part A:
The correlation coefficient of r = 0.51 is accurate based on the scatter plot given.
Part B:
A scenario that would be a causal relationship can be quantity of fertilizer used vs kg of pumpkins picked on the farm.
Learn more about scatter plot on:
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The sum of two consecutive integers is -92. Find the integers.
Answer:
x = -46.5
x + 1 = -45.5
Step-by-step explanation:
x + x + 1 = -92
2x + 1 = -92
-1 -1
------------------
2x = -93
---- ----
2 2
x = -46.5
x + 1
(-46.5) + 1
-45.5
Answer:
No solution
Step-by-step explanation:
We can set up an equation where x is the integer and x+1 is the next one
x+x+1=-92
2x+1=-92
2x/2=-93/2
x=-46.5
-46.5+1=-45.5
The problem is that integers do no include decimals so there is no possible whole number. This problem would be possible if it was consecutive odd integers.
Determine the quotient: 2 4 over 7 ÷ 1 3 over 6.
Answer:
144/91
Step-by-step explanation:
24/7 ÷ 13/6
Keep the first fraction the same, change the sign, and flip the last fraction to solve
24/7 × 6/13 = 144/91
Answer:
144/91
Step-by-step explanation:
24/7 ÷ 13/6
Keep the first fraction the same, change the '÷' sign to '× ' and reciprocal of the last fraction to solve.
24/7 × 6/13 = 144/91
A realtor earns 3% commissions on any house sale she makes. If she sells a house for $125000 how much commission is she going to earn? Answer ASAP please for good explanation
Answer:
$3750
Step-by-step explanation:
It's simple, just find the 3%of $125000
IF YOU SATISFIED WITH THE ANSWER, DON'T FORGET TO MAKE ME A BRAINLISTS.A pair of equations is shown below:
y = 2x − 1
y = 4x − 5
Part A: In your own words, explain how you can solve the pair of equations graphically. Write the slope and y-intercept for each equation that you will plot on the graph to solve the equations. (6 points)
Part B: What is the solution to the pair of equations? (4 points)
A monkey is swinging from a tree. On the first swing, she passes through an arc of 10 m. With each swing, she passes through an arc 9/10 the length of the previous swing.
What is the total distance the monkey has traveled when she completes her 25th swing? Round your final answer to the nearest meter.
Answer:
250,000 meters (m)
Step-by-step explanation:
First swing she passed through an arc of:
10m
Each swing, she passed through an arc of :
9/10
9/10×10=10
25×10=250km
250km converted to the nearest m=
250,000 Meters (m)
Note: *This is my opinion, you can try it and see if it's correct,I'm sorry if it's not. Good luck!*
. Emma wanted to make an origami fish for each of her 22 classmates. She takes 30 minutes to make one fish. How long will Emma take to make all the fish? A 320 minutes B 11 hours © 600 minutes D 660 hours
Answer:
11 hours
Step-by-step explanation:
50 minutes = 1 hour
30 minutes = 1/2 hour
She takes 1/2 per fish.
1/2 * 22 = 11
Answer: 11 hours
A bag of marbles contains 12 blue marbles, 5 red marbles, and 13 green marbles. if one is selected at random, what is the probability that the selected marble is blue?
A. 0
B. 2/5
C. 13/30
D. 5/6
E. 1
Answer:
2/5
Step-by-step explanation:
Total marbles=12+13+5=30
P(that the selected marble is blue) = 12/30 = 6/15 = 2/5
DeAndre Hopkins caught a 66 yard pass during the game. How many feet was the football thrown?
Answer:
198 ft
Step-by-step explanation:
3 ft = 1 yd
66 yd * 3 ft/ 1 yd = 198 ft
sin0+sin0+2sin0+3sin0
step by step
Answer:
0
Step-by-step explanation:
the value of sin 0 degree is always equal to 0.
=0+0+2x0+3x0
=0
Is the following question a statistical question:
How far do students live from their school building?
In complete sentences, explain why or why not.
Answer:
they live 10 miles away form school.
The solution is : Is in, general, how tall are giraffes? is a :
Statistical question.
What is statistic?A statistic (singular) or sample statistic is any quantity computed from values in a sample which is considered for a statistical purpose. Statistical purposes include estimating a population parameter, describing a sample, or evaluating a hypothesis.
Given question
Is in, how tall are giraffes?
Statistical question is that type of question which have more than one possible answers. The answer of statistical question is the collection of various points of data. The answer of statistical question depends on variety and situations. The answer of statistical question may be range . Answer of statistical question are more than one.
Non statistical question is that type of question which have only one answer.
For example, the value of 2+2
Answer: 2+2=4
It has only one answer .Therefore , it is non statistical question.
Given question is a statistical question because the height of all giraffes are not same . Height of some giraffes are same and some giraffes have same height. The height of female giraffes are smaller than the height of male giraffes.
The range of height of male giraffes lies between 16 feet to 20 feet.
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complete question:
Is in, general, how tall are giraffes? A statistical question or non statistical question
PLZ HELP 10 POINTS
Is the transformed figure (image) congruent to the original (pre-image) figure?
Congruent means there's exact shape and angle magnitude since transformation requires relocation of an image there's no change to it's shape therefore it's congruent
From an 18-pound cut of meat, Mr. Rand cuts off steaks weighting 1 pound 15 ounces, 3 1/8 pounds, and 4 1/2 pounds. He divides up the rest into 9-ounces patties and sells them at 3 for $3.12. How much money does he receive for the patties?
Answer is in the picture
The amount of money received by him will be $15.60.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division
The amount will be calculated as follows:-
The cut off amount = 18 - ( 1(15/16) -3(1/8)-4(1/2) = 8(7/16)
Now 16 ounces make a pound so divide by 16 we get:-
(135/16) ÷ ( 9 / 16 ) = ( 135/16 ) x ( 16 / 9 ) = 15
Dividing 15 by 3 we get 5 packs of 3 patties for $3.12
So amount = 3.12 x 5 = $15.60
Therefore the amount of money received by him will be $15.60.
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A number of baskets a company produces each day is shown in the table.
Answer:
a) Number of Days × 45 = Total of Blankets
b) 16425
Step-by-step explanation:
a) its the number of days (1, 2 ,3 so on) times 45 = number of blankets
b) 365×45 = 16425
