solve for x 2x+5=17 plzhelp
x = 6
you have to work out the problem and what ever you do to one side, you do to the other
Answer:
x=6
Step-by-step explanation:
2x+5=17
Subtract 5 from both sides;
2x+5-5=17-5
Simplify
2x=12
Divide both sides by 2;
2x/2=12/2
Simplify;
x=6
Hope this Helped!!!
Solve for the indicated variable. Show your work. Rewrite the equation so y is isolated. y=9x + y = 7 ; y
Sowwy I do not know it:(
When Grayson moved into a new house, he planted two trees in his backyard. At the time of planting, Tree A was 29 inches tall and Tree B was 14 inches tall. Each year thereafter, Tree A grew by 2 inches per year and Tree B grew by 5 inches per year. Let A A represent the height of Tree A t t years after being planted and let B B represent the height of Tree B t t years after being planted. Write an equation for each situation, in terms of t , t, and determine the height of both trees at the time when they have an equal height.
Please help this is due soon!! NO LINKS!!
The volume of a cone with a height of 10 meters is 20pi cubic meters. What is the diameter of the cone? Round your answer to the nearest tenth.
Answer:
2.4
Step-by-step explanation:
given that there is one possible outlier. if the outlier was removed from the data set, how would it effect the measures of central tendency? {8, 73, 74, 75, 79, 85, 85, 92, 94}
(not links)
O Mean increases median decreases
O Mean decreases median increases
O Both mean and median increase
O Both mean and median decrease
Answer:
Some measures I believe you are talking about are mean, median, mode, and range.
Mean is the average of all values. This is found by adding up all numbers and dividing by the amount of numbers. Outliers greatly affect and "throw off" the mean, making it inaccurate at calculating the average without an outlier.
Example:
1, 2, 4, 6, 10
(1 + 2 + 4 + 6 + 10)/5 = mean = 4.6
1, 2, 4, 6
(1 + 2 + 4 + 6)/4 = mean = 3.25
Because of this, mean does change when adding and removing outliers, and is therefor not the answer.
Median is the middle of the data. This is found by ordering the values in the data set from least to greatest (or greatest to least, either one works) and finding the number in the center of all the values. If there were an outlier, the median wouldn't be skewed as the mean is by outliers, but it would change.
Example:
1, 2, 4, 6, 10 Median = 4
1, 2, 4, 6 Median = 3
So median is not the answer, because it is affected by adding and removing outliers.
Mode is the value in a data set that appears the most. Outliers are numbers that are significantly lower or higher than most or all of the other numbers in a data set. Because of this, there can't be more outliers than other numbers, so it is impossible for the mode to be an outlier.
Example:
1, 1, 1, 2, 3, 4, 4, 86 Mode = 1
1, 1, 1, 2, 3, 4, 4 Mode = 1
This means the mode is not affected by adding and removing outliers.
Mode is a possible answer, but let's take a look at range before coming to a conclusion.
Range is the spread of values in a data set. In other words, the difference between the highest and lowest value. A high range can signal a possible outlier is present.
Example:
1, 2, 4, 6, 10
10 - 1 = highest value - lowest value = range = 9
1, 2, 4, 6
6 - 1 = highest value - lowest value = range = 5
The range is certainly affected by outliers, so it is not the answer.
Out of mean, median, mode, and range, the answer to this question is mode.
If an outlier is removed, mode will not change.
Hope this helps!
Step-by-step explanation:
4.) Dylan scored a 95, 78 and 89 on his first three science tests. Write and solve an inequality to determine what is the lowest possible score he can get on his fourth test to average at least a 90 in the class.
Answer:
98
Step-by-step explanation:
Dylan must get at least a 98% to reach an average of 90. (95+78+89+98)÷4=90.
A mint produces 150,000 souvenir coins each year. In a random sample of 400 coins, 3 have a misprint. Predict the number of coins that will have misprints in a year.
Please answer! Brainliest will be given, thanks :)
Answer:
2600, 3400, 5000, 7000
Step-by-step explanation:
This equation can be simplified to 200n + 1000. Now we can just plug in the amount of customers. 200 * 8 + 1000 = 2600. 200 * 12 + 1000 = 3400. 200 * 20 + 1000 = 5000, and 200 * 30 + 1000 = 7000.
Slope=5, goes through the point (2,7)..
Answer:
the y-intercept is 7
Step-by-step explanation:
hope it helps. i just looked at the ordered pair and took the number that's on the y axis
Answer:
y=5x-3
Step-by-step explanation:
Slope intercept form is y=mx+b and you know the slope so you can get y=5x+b
Then you are given a point, (2, 7), so you can plug that into the equation to find the y-intercept
7=5(2)+b
Then you just solve for b
7=10+b
-10
-3=b
So the final equation is y=5x-3
Look at the picture and help please.
Answer:
1.12
Step-by-step explanation:
it will be 4/3 time $9.27 subtracted from 4/3 times 8.43 which is 1.12
Charity sold 110 cookies for $0.75 each. Her cost to make each cookie was $0.20 plus $20 for boxes. How much profit will charity make on this sale?
A $64.50
B $62.50
C$60.50
D$40.50
Solve these equations:
3|x+5|=7
| = absolute value
Answer:
x=-8/3
x=-22/3
Step-by-step explanation:
Answer:
3x-5=7
Step-by-step explanation:
Please answer quickly, and nO FiLesS PLEAsEeEeeeeE
Answer:
Please explain better
Step-by-step explanation:
Answer:
number 10: mean:15.5 median:16.5 mode20
number 11: mean: 71 median: 63 mode: 45, 48, 63, 151, 47, 88, 44, 68
Step-by-step explanation:
Use the triangle formed by the vertices L(—3, 4), A(O, 5) and D(2, l). AL' A'D' is a triangle formed by using the transformation rule (x, y) —5 (—x, y) .
a. What type of transformation is ALAD —AL'A'D'?
b. Are A LAD and AL'A'D'congruent or similar?
Answers are not a or b. those need answers themselves! Pls pls pls! I really need this done! I will fail if i dont finish!
Answer:
Step-by-step explanation:jens whenever ejene end snsnsns s snehhsuwi
7. Geometry Which set of ordered pairs can be
connected in order to form a right triangle?
A (-1,3), (FT, -1), (2, -1)
B (-4, 0), (0, 1), (1, -2)
C (2, 2), (2, -2), (-2, -2), (-2, 2)
D (0,5), (-3, 3), (3, -3)
Please help me with the work
Answer:
1. you answered correctly :)
2. how many 1/4's go into 12? in other words multiply 12 and 4 to get 48/4
3. Draw a diagram of 1/5ths until it equals 15 (you'll need a total of 75 boxes)
4. the problem is 18z=72 so you need to divide 72 and 18. 72/18=4. therefore z equals 4.
5. make up a division problem that has the answer of 8. for example 24/y=3. y will equal 8. and then use a tape diagram for that.
6. make up a multiplication problem that has an answer of 8. for example 3y=24. y will equal 8. and then use a tape diagram for that.
7. Meghan is correct. when you have y divided by two you need to do the opposite and multiply both sides by two. Meredith was incorrect because she switched the division and multiplication signs completely which is not what you are supposed to do.
Step-by-step explanation:
I hope this helped :) (the only thing you could write down word for word is #7. for 1-6 just read what i have to say and follow the directions and it should help) have a great day!!!!
I will solve these equations algebraically.
Here you are:
1. 30= 5w
Divide each side by 5.
30÷5= 5w÷5
6 = w
∴ w= 6
To check,
30=5w
Substitute w for 6
30= 5 x (6)
30= 30
LS= RS
(You were correct, great job!)
2.
12 = x÷4
Multiply each side by 4.
12 x 4 = x/4 x 4 ↔ 4 and 4 cancel out.
48= x
∴ x=48
Checking:
12= 48÷4
12= 12
LS=RS
3.
y÷5=15
Multiply each side by 5.
y÷5 x 5= 15 x5
y =75
∴y=75
Checking:
Substitute y for 75.
y÷5=15
75÷5=15
15=15
LS=RS
4.
18x=72
Divide each side by 18.
18x ÷ 18= 72÷18
x = 4
∴x= 4
Checking
18x=72
18(4)=72
72=72
LS=RS
I hope that these solutions helped you. I am sure that using the solutions, you can figure out the other questions on your own.
What is the mode for the set of data?
Ages
Stem Leaves
Answer:
74
Step-by-step explanation:
Because it's stem and leaves, the leaves are the digits DIRECTLY BEHIND the Stem.
74 appears 3 times which is the mode (most) in the set of data
28. A box is 2 m long, 30 cm high and 40 cm wide. What is the volume of the box in cubic centimeters?
Answer: 240000 cm³
Step-by-step explanation:
2m=200cm
Now 200×30×40=240000cm³ :)
Ben collected data from a group of 12 people. He measured each person’s resting heart rate and recorded the average number of hours each person exercised per week. He created a scatterplot to show the data he collected.
Based on the scatterplot, what is the best prediction of the resting heart rate, in beats per minute, of a person who exercises an average of 8 hours each week?
A. 55 beats per minute
B. 60 beats per minute
C. 50 beats per minute
D. 30 beats per minute
Answer:
50
Step-by-step explanation:
Answer:
50
Step-by-step explanation:
A data set is made up of the values 6, 6, 7, 10, and 11. The table shows the distance between each value and the mean of 8. Data value Distance between value and mean 6 6 2 2 1 7 3 Sum of distances What is the mean absolute deviation (MAD) of the data set?
A. 3
B. 8
C. 5
D. 2
Answer:
the answer is 8 b
Step-by-step explanation:
i got it right
Answer:
The answer is D not B.
Step-by-step explanation:
Pls help me with the help I don’t understand
Answer: for the first one shade 6 in and for the second shade 7 in and last one shade 11 in.
Step-by-step explanation:
What is the solution to the system of equations shown?
please help asap im so confused
Answer:
C
Step-by-step explanation:
Looked it up :) Have a great day!
Answer:
i think it is B
Step-by-step explanation:
is a prime number is a number times itself yes it is
Answer:
yup
Step-by-step explanation:
Pls help me
AND
PLS FOLLOW THE RULES
TROLL FOR POINTS= REPORT
FIRST AND CORRECT ANSWER= BRAINLIEST
( NO LINKS ) at all
HELP ASAP
The graph shows the relationship between the number of months different students practiced boxing and the number of matches they won:
Part A: What is the approximate y-intercept of the line of best fit and what does it represent?
Part B: Write the equation for the line of best fit in the slope-intercept form and use it to predict the number of matches that could be won after 13 months of practice.
Answer:
Use khan academy for the graph.
Step-by-step explanation:
part 2) pls help ASAP (BRAINLIST) 12 points
2. How many different outcomes are represented in your tree diagram?
3. Suppose the three primary colors are red, yellow, and blue How many outcomes contain at least one primary color?
Answer:
2. 4 outcomes 3.12
Step-by-step explanation:
After this is 2 more pls help asap. Thanks and have a great day!
Answer:
32
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
When would you use a line graph?
if the data is given as data pairs
to compare change over time
to compare categories
if the data is numerical
Choose all that are corrects
Random answers and links will be reported
Answer:
- If the data is numerical
- To compare categories
Basically D and C lol
Step-by-step explanation:
A data set has a mean of 7, a median of 5, and a mode of 8. Which of the numbers (7, 5, or 8) must be in the data set?
If possible, please explain in words, thank you. :)