Answer:
Step-by-step explanation:
Given : 7 11 4 2 =10. To Find : make it true using order of operations. Solution: 7 11 4 2 =10. 7 + 11 - 4 x 2 = 10. Applying BODMAS.
Drag each expression to show whether it is equivalent to 8( t+ 4), 8 t+ 4, or neither.
The histogram to the right shows the number of students in a PE class with their mile running times.
a. How many students are in the PE class?
b. Which interval would have the time 8 minutes?
c. In which interval of time did most students finish?
d. Find the probability a random student chosen ran with a time between 6 and 7 minutes.
e. The teacher teaches a total of 120 students in all PE classes. Predict how many students will run between 6 and 7 minutes.
Answer:
please send a clear image
Step-by-step explanation:
a sample of 500 schools in a state results in an average number of students per grade level of 178.6 students, with a margin of error of 45.2 if there are 3250 high schools in the state, what is the estimated number of students per grade level?
Can you help me with this anyone I would appreciate it.
Answer:
(x,y) = (-3,7)
Step-by-step explanation:
you gotta do alot to get this..
hope this helps
A school board randomly samples 80 students to determine their opinion on requiring school uniforms for the next school year. The table shows the results of the survey.
If there are 3,000 students in the district, how many students do you expect to be undecided about school uniforms?
Answer: 900
Step-by-step explanation:
If 24 out of 80 students are undecided, that is 24/80, or 3/10 (0.3).
To find how many would be undecided out of 3,000 students, multiply 3/10 by 3,000/1, and you get 900, which is your answer
Answer:
900
Step-by-step explanation:
A school board randomly samples 80 students to determine their opinion on requiring school uniforms for the next school year. The table shows the results of the survey.
If there are 3,000 students in the district, how many students do you expect to be undecided about school uniforms?
we can solve with an equation
80 : 24 = 3000 : x
x = 24 * 3000 : 80
x = 900
Could someone help me with this quikly
Answer:
Plan A=3/2 hours Plan B=5/4 hours
Step-by-step explanation:
Plan A equals x
Plan B equals y
So than 3x+2y=7
And 8x+4y=17
Then you multiply the first equation by 2 to get rid of Y. 6x+4y=14 and 8x+4y=17 2x=3 x=1.5 y=1.25
Which unit rate corresponds to the proportional relationship shown in the graph?
Will mark brainliest !!
Haven't done this kinda problem in a while but I got 4/3 cm/s
Step-by-step explanation:
Using the coordinates given i put them into the formula:
y1 - y2
m=_________
x1 - x2
That gave me -16/-12, I simplified & got 4/3.
50 POINTS SHOW YOUR WORK OR I WILL DELETE! !BRAINLIEST!
There are 18 pieces of chalk. The ratio of chalk that is yellow to chalk that is not yellow is 1 : 2. How many pieces of chalk are yellow? Show or explain how you got your answer.
Answer:
9
Step-by-step explanation:
1:2 is the same as 1/2
if 1/2 of the chalk is yellow, then divide 18/2
18/2 = 9
Answer:
6
Step-by-step explanation:
so do a tape diagram with 1 box and underneath 2 boxes you then divide 3 boxes by 18 giving you 18.
please answer question in the image below ty <3
Answer:
Step-by-step explanation:
(9x+13)
What is the constant of proportionality?
also I will mark brainliest !!
Answer:
I dnt know the ture answer, but mabye this will help
Step-by-step explanation:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.
Solve the inequality d/4 > 36 for d
A. d < 9
B. d < 144
C. d > 144
D. d > 9
Answer: D. d > 9
Step-by-step explanation:
We have the inequality:
d/4 > 36
To solve for d, we need to isolate the variable d on one side of the inequality. We can do this by multiplying both sides of the inequality by 4:
d > 36 x 4
d > 144
Therefore, the answer is (D) d > 9, since any value of d greater than 9 would satisfy the inequality. We can also check that the other answer choices are incorrect:
If d < 9, then d/4 < 9/4, which is less than 36. So, (A) d < 9 is not a valid solution.
If d < 144, then d/4 < 144/4 = 36, which is less than 36. So, (B) d < 144 is not a valid solution.
If d > 144, then d/4 > 144/4 = 36, which satisfies the inequality. So, (C) d > 144 is also a valid solution, but not the most inclusive one.
Answer:
the correct answer is option C: d > 144.
Step-by-step explanation:
Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 95 miles per hour. The westbound train travels at 85 miles per hour. How long will it take for the two trains to be 432 miles apart?
Rewrite the false statement to make it true:
Answer: more than 500 shirts will be washed each day
Step-by-step explanation:
Please Help
Show that pentagon CDEFG is similar or not similar to pentagon PQRST. [Image in the attachment]
Are the two pentagons similar? How do you know?
-No, because all corresponding sides are not congruent.
-Yes, because all corresponding sides are proportional.
-No, because all corresponding sides are not proportional.
-Yes, because all corresponding sides are congruent.
C. no, because all corresponding sides are not proportional.
Which equation results from adding the equations in this system? Negative 6 x + 4 y = negative 8. 6 x minus 12 y = 14. Negative 16 y = 6 Negative 8 y = 6 Negative 8 y = negative 22 Negative 16 y = negative 22
Answer:
Negative 8y = 6
Step-by-step explanation:
-6x + 4y = -8
6x - 12y = 14
--------------------------
-8y = 6
Solve the word problem and ratio table.
Pls help me
create equivalent ratios by completing a ratio table for each. 1. 7 to 5 ( using multiplication), 2. 50:20 ( using division), 3. 3/4 (using multiplication), 4. 18:48 ( using division)
ASAP
Step-by-step explanation:
7 : 5
[tex] \binom{7 \: 14 \: 21 \: 28 \: 35}{5 \: 10 \: 15 \: 20 \: 25} [/tex]
50 : 20
[tex] \binom{50 \: 25 \: 5}{20 \: 10 \: 2} [/tex]
3 : 8
[tex] \binom{3 \: 6 \: 9 \: 12 \: 15 \: 18}{8 \: 16 \: 24 \: 32 \: 40 \: 48} [/tex]
18 : 48
[tex] \binom{18 \: 9 \: 6 \: 3}{48 \: 24 \: 16 \: 8} [/tex]
Ratios must always remain proportional;
Whenever you multiply or divide one part by a number, you must do the same to the other part/s;
When it comes to division, you can divide by all common factors
Solve the word problem and ratio table
Answer:
4
Step-by-step explanation:
5tv
What is the approximate difference between the volume of the sphere and the volume of the cone?
A about 13.6 cm3
B about 16.8 cm3
C about 4.3 cm3
D about 80.6 cm3
Answer:C
Step-by-step explanation:
A flower was 1.6 meters high one week ago. In 7 days it grew 11 centimeters. What is the current height of the flower?
Answer:
The current height of the flower is 1.71 meters!
I hope this answer helped you!!!
Step-by-step explanation:
I took the test!!!
Isabella drove 2 1/3 miles from home to school. Then, she drove 4 3/5 from school to the store and 5 4/5 miles home from the store. Write an addition sentence to show the total number of miles.
The price of a technology stock was $9.79 yesterday. Today, the price fell to $9.66. Find the percentage decrease. Round your answer to the nearest tenth of a percent.
Answer: 1.3%
Step-by-step explanation:
The percentage decrease can be found using the formula:
percentage decrease = [(original value - new value) / original value] x 100%
Substituting the given values:
percentage decrease = [(9.79 - 9.66) / 9.79] x 100%
percentage decrease = 1.33%
Rounding to the nearest tenth of a percent, the percentage decrease is 1.3%.
Answer: hope this helps ♡
The percentage decrease is 1.33%.
Step-by-step explanation:
Percentage decrease: dividing the value by the total value and then multiplying it by 100
Total value: $9.79 Value: $9.79 - $9.66 = 0.13
[tex]\frac{0.13*100}{9.79}[/tex] =
(0.13 × 100) ÷ 9.79 =
13 ÷ 9.79 =
1.32788559755 ≈ 1.33%
HELP MEEEEEEEEEE PLS
If f(n) = n2 - 2n, which of the following options are correct?
Select all that apply.
f(2) = 0
f(-2) = 0
f(1) = 3
f(5) = 35
f(-4) = 24
Answer:
f(2) = 0
f(-4) = 24
Step-by-step explanation:
[tex] \hookrightarrow \: { \tt{ \sf{f(n) = {n}^{2} - 2n }}}[/tex]
When n is 2 ✔
[tex] \dashrightarrow \: { \tt{f(2) = {(2)}^{2} - (2 \times 2) = 4 - 4 = 0}} \\ [/tex]
When n is -2 ✖
[tex] \dashrightarrow { \tt{ {( - 2)}^{2} - (2 \times - 2) = 4 + 4 = 8 }}[/tex]
When n is 1 ✖
[tex] \dashrightarrow{ \tt{f(1) = {(1)}^{2} - (2 \times 1) = - 1 }}[/tex]
When n is 5 ✖
[tex] \dashrightarrow{ \tt{f(5) = {(5)}^{2} - (2 \times 5) = 15}}[/tex]
When n is -4 ✔
[tex] \dashrightarrow{ \tt{f( - 4) = {( - 4)}^{2} - (2 \times - 4) }} \\ { \tt{ = 16 + 8}} \\ { \tt{ = 24}}[/tex]
Gaspar is riding his bicycle. The graph shows the relationship between time in hours and the miles Gaspar rides. Write an inequality to show the number of hours when Gaspar has ridden more than 80 miles.
Answer:
Step-by-step explanation:
b
Math please help (needed in at most and hour)
Luke has 1/5 of a package of dried apricots. He divided the dried apricots equally into 3 small bags. Luke gives one of the bags to a friend and keeps the other two bags for himself, what fraction of the original package of dried apricots did Luke keep for himself? (answer in simplest form)
Answer:
Luke kept 1/3 to himself
Step-by-step explanation:
The number of students in 10 kindergarten classes is shown below.
20, 18, 21, 18, 22, 24, 18, 23, 23, 24
What number of students describes the first quartile?
What number of students describes the third quartile?
What number of students describes the interquartile range?
Answer:
1. 18
2. 23
3. 5
Step-by-step explanation:
The first quartile is 18, the third quartile is 23, and the interquartile range is 5.
Four swimmers are training for a relay race. Each day they practice by swimming at least 1,600 yards total. The friends evenly divide the number of yards they swim.
Write and solve an inequality to determine how many yards each friend will swim. Show all your work.
Answer:
400
Step-by-step explanation:
I divided 1600 by 4 which got me 400
I don't know B. :⊂ Find the answer for me please?
Answer:
For A: The answer is (79-2x) degrees
For B: The answer is (169-2x) degrees
I hope this answer helped you out!
Step-by-step explanation:
I took the test!!!
USE THE DOT PLOT GRAPH TO FIGURE THIS OUT!!
What is the most appropriate measure of center for the data set about 7th graders?
A)mean
B)median
C)range
D)IQR
Answer:
The most appropriate measure of center for the given data set about 7th graders is the median (option B).
Step-by-step explanation:
The median is the middle value in a data set when the values are arranged in ascending or descending order. It is not affected by extreme values or outliers. There is an outlier in this case (180), which could alter the mean and represent the data inaccurately. The range does not give a measure of center but instead represents the spread of the data. The IQR is a valuable measure for understanding the spread of data and identifying potential outliers but is not suitable for describing the central tendency or average of the data.