Answer:
n = 7
Step-by-step explanation:
n = (-1) x (-7)
Simplify:
When two minus signs appear in the product of two numbers, you can cancel them out.
Therefore:
n = (1) x (7) = 7
Hope this helps!
:)
Julie is painting a mural on a rectangular wall in her school. The wall is 20.5
feet long and 10
feet wide. So far, her mural covers 20%
of the wall. She will paint the remaining part of the wall over the next four days. She will paint the same amount of the wall on each of those four days.
How much of the wall, in square feet, will Julie paint on each of the next four days?
Enter your answer in the space provided.
the wall she's using for the mural is (20.5)(10) = 205 ft², so far she has done 20% of that, well, she still has 100% - 20% = 80% to go on the next four days, so on the next four days she'll be doing 80% of 205 ft².
\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 205}}{\left( \cfrac{80}{100} \right)205}\implies 164~ft^2\)
A construction crew is lengthening a road that originally measured 41 miles. The crew is adding one mile to the road each day. Let L be the length (in miles) after D days of construction. Write an equation relating L to D. Then use this equation to find the length of the road after 38 days.
Answer:
We can simply find our answer and this is our solution
38D+41=L
Step-by-step explanation:
A submarine submerges from the surface of the sea at the rate of 10 m/min. How long will it take to reach 300 m below the sea level
Answer:
answer is 300m/30min
Step-by-step explanation:
300\10=30
Given the speed of the submarine, the total time it will take to cover the the given distance is 30 minutes.
How long will it take the submarine to reach 300 m below the sea level?Using the expression Time = distance / speed.
Given that;
Speed = 10m/minDistance = 300mTime = ?Time = distance / speed
Time = 300m / 10m/min
Time = 30 minutes
Given the speed of the submarine, the total time it will take to cover the the given distance is 30 minutes.
Learn more about speed here: brainly.com/question/7359669
#SPJ9
PLEASE HELP IM DOING MULTIPLE QUESTIONS ILL GIVE BRAINLIEST FOR ALL QUESTIONS TODAY
Answer:
\(s\geq 45\)
Step-by-step explanation:
First, we need to find out how many spoons Lily actually needs.
420-159=420-160-1=269
Next, we need to find out how many packs of spoons Lily needs.
269/6=44.83333333…
Now we need to round this number down and add 1.
44+1=45
Finally, we need make an inequality. Remember, “at least” means greater than or equal to.
\(s\geq 45\)
clark collects some comic books, some based on history and some fictional. if the ratio of historical comics to fictional comics is 5:2, how many comics could clark have?
Answer:
The answer is 10:4
Step-by-step explanation:
Its 10:4 because 5 x 2 = 10 and 2 x 2= 4 so that would equal 10:4
Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.
What is the mean number of minutes spent on the phone?
Explanation:
The data from the stem-and-leaf plot is:
10,
24,25,26,
30,30,32,33,
40,45,46
Add up those values
10+24+25+26+30+30+32+33+40+45+46 = 341
Then divide over n = 11 which is the sample size.
341/11 = 31 is the arithmetic mean.
Answer:
341/11 = 31 is the arithmetic mean.
Step-by-step explanation:
Help----------------------------------------
GiveN:
Some letters are given.They are choosen at random.To FinD:
Probability of getting a vowel.Step-wise-Step Explanation:
Letters we have: A, D, Q, Y, R, F, E, V, M
Total Number of letters = 9
Vowels among the given letters = 2
Probability of getting vowels:
\( \rm{ = \dfrac{ no. \: of \: vowels \: we \: have }{total \: no. \: of \: letters} }\)
= n(vowels) / n(letters)
= 2 / 9
The required probability of getting a vowel when chosen randomly is 2/9.
#KeepOnExploring!
Using a proportion, how can we find 12% of 125? Please show your proportion set up and all work. HELP ME ASAPPPPPPPPP THE CORRECT ANWSER GETS A BRAINLIST I HAVE 3MINS SOMEONE PLEASE!!!!!
Answer: 15
Step-by-step explanation:
Write 12% as a fraction: 12/100
Since, finding the fraction of a number is same as multiplying the fraction with the number, we have: 12/100 of 125.
12/100 × 125
If you are using a calculator, enter 12÷100×125 which will give you 15 as the answer.
If two people are going to a resturaunt and they both order chicken how much money did they spend? (The chicken is $15 and the price is 13% off)
Margo is wrapping a box that is 7 inches long, 10 inches wide, and 4 inches high. How much wrapping paper will she need to cover the entire box?
Answer:280 in
Step-by-step explanation: First we multiply the length by the width and that would be 7 by 10 and we would get 70. Next we multiply the height by the total of (l x w), so 4 x 70 would be 280. Margo needs a total of 280 inches of wrapping paper to cover the entire box. Hope this helps! :)
please help asap asap asap
Pls help me in math, I need this tomorrow, thx :)
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
Two sets of data, set X and set Y are given
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
Therefore, both the data sets has same range and mean.
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
To learn more about S.D and variance,
https://brainly.com/question/15858152
https://brainly.com/question/12402189
Answer: Range and mean = 8 of both
variance of Set X= 4.7
variance of Set Y= 4.6
Step-by-step explanation:
We know
a.) Range is the difference of the highest value and the lowest value,
Therefore, Range of set X = 12-4=8
Range of set Y = 12-4=8
Now, Mean of a given data set is the average of all the terms present in the given data set
Mean of set X= Σxif/n = (4+5+6+7+16+18+24)/10 = 8
Mean of set Y= (4+5+7+32+20+12)/10= 8
also
b.) Standard deviation tells about the variability of the date and is given by,
S.D= σ = √∑ ( X − μ )^2/n
S.D of set X= √(16+9+4+1+0+1+16)/10= √4.7
S.D of set Y= √(16+9+1+0+4+16)/10= √4.6
Variance is the square of S.D, that is, σ^2
Therefore, variance of set X=4.6
variance of set Y= 4.7
c.) The calculated variances of set X and set Y are 4.7 and 4.6 respectively. It implies that the data is more distributed or varied in set X than in set Y. In the other words, data in set Y is more consistent data than of set X.
can some one help me :(
Answer:
Column C in order: 0,1,2,5,6,5
Step-by-step explanation:
Please help me with this yall
I tried plotting it to make it readable but copy it off I put down the letters for you.
Step-by-step explanation:
Distance from A-B = 4
Distance from B-C = 3
C-D = 4
D-E = 9
E-F = 8
F-A = 6 total = perimeter = 34 units
Here is the drawn-in figure from Ameliahunt42:
Which expression is equivalent to 5(x – 3)?
A) 5x – 3
B) 2x
C) x – 15
D) 5x – 3(5)
PLEASE HURRY
Answer: Answer D!!!!
Step-by-step explanation:
Apparently Nobody is able to answer this question. You can search it up but I've tried that already, still no answer.
But anyways... The question is : 3x+1
Answer:
if it is odd then multiply it by 3 and add 1, and if it is even, divide it by 2. Then repeat this process as long as you can.
Step-by-step explanation:
hope dis helped:)
I need help with one question.....
Answer:453
Step-by-step explanation:
A tea set was bought for $ 328, if a discount of 12% is offered on the price. Find the price of the tea set.
288.64
this is the real answer the last one was a mistake
What is the surface area of this cylinder?
Use ≈ 3.14 and round your answer to the nearest hundredth.
_____ square meters.
Help
Answer:
3504.24 square meters
Step-by-step explanation:
You want the surface area of a cylinder of radius 18 m and height 13 m.
Surface areaThe surface area of a cylinder is given by the formula ...
A = 2πr(r +h)
A = 2(3.14)(18 m)(18 m +13 m) = 3504.24 m²
The surface area of the cylinder is about 3504.24 square meters.
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Can anyone help me with this one, Next one.......
Answer:
B) m + 7
Step-by-step explanation:
x + y + z = (m+9)/2 + (2m+15)/2 + (3m+18)/2 = (6m + 42)/2 = 3m + 21
Average of x, y, and z = (x + y + z)/3 = (3m + 21)/3 = m + 7
Answer:
m + 7
Step-by-step explanation:
\(x = \frac{m + 9}{2}\\ \\y = \frac{2m + 15}{2}\\\\z = \frac{3m + 18}{2}\\\\To\;\;find\;\;\\\frac{x+y+z}{3} \\\\= \frac{1}{3} *[\frac{m + 9}{2}+\frac{2m + 15}{2}+\frac{3m + 18}{2}]\\\\= \frac{6m + 42}{6}\\ \\= m + 7\)
Please help, i will give brainliest if possible (2 questions)
Thanks!!
Answer:
1st page:
A. 28
B. 24
C. The answers were different because out of the 24 students, some played more than 1 sport
Step-by-step explanation:
I can’t help with 2nd page, Sorry!
The tape diagram below represents 100\%100%100, percent.
What percent is represented by the shaded area?
Answer:
Step-by-step explanation:
Well the answer is 40 cause you count by 20 so if you in 20 t o times then you would get 40 percent
Rewrite the expression from part B by distributing "-1" from each of the negative numbers.
Answer: 1/81
Step-by-step explanation:
Step 1.) To express it as a positive exponent, rewrite it as a reciprocal.
Step 2.) Now you have ( 1 / -3 )4
Step 3.) Express it as a quotient of powers. = (1)4 / (-3)4
step 4. Simplify. = 1/81
Answer:-1*60/-1*10
Or
-1*60 feet/-1*10 feet
Step-by-step explanation:
This graph shows the number of miles traveled by a train over a 5 hour trip.
How fast is the train traveling?
A. 30 mph
B. 32.5 mph
C. 35 mph
D. 40 mph
Answer:
35 mph
Step-by-step explanation:
if you look at the 1 hour mark its at 35 and the 2 hour is at 70
70/2=35
I hope this helps!!!
cassie is placing stickers on a page that is 12 inches long and 8 inches wide the sticker are 3 inches long and 2 inches wide
Answer:
To find the greatest number of stickers Cassie can place on a page that is 11 inches long and 8 inches wide without them overlapping, we need to use the same approach as before.
Firstly, we need to calculate the maximum number of stickers that can fit along the length of the page, which is now 11 inches. Since each sticker is 3 inches long, we can fit 3 stickers along the length (11 ÷ 3 = 3 with a remainder of 2).
Next, we can calculate the maximum number of stickers that can fit along the width of the page, which is still 8 inches. Since each sticker is 2 inches wide, we can fit 4 stickers along the width (8 ÷ 2 = 4).
To ensure that the stickers do not overlap, we can only use the full row of 3 stickers from the previous calculation. Therefore, we can place 3 stickers along the length and 4 stickers along the width, giving us a maximum of 12 stickers that Cassie can place on the page without them overlapping.
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
First, find out how much stickers you can put on the long side:
12/3 = 4
Next, find out how much stickers you can put on the wide side:
8/2 = 4
Lastly, calculate them together:
4x4=16
So the answer is 16.
Work out the size of angle m.
Answer:
78+25+61+55+64=283
360-283=77
180+77=257
Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
can someone help me with this please?
Answer:
Big triangle= 4*1.5=6
Small Triangle= 7.5/1.5=5
Ratio=7.5/5 or 1.5
Step-by-step explanation:
\(\frac{7}{10.5}\)=\(\frac{x}{7.5}\)
cross multiply
10.5x=52.5
divide both sides by 10.5
x=5
7.5/5= ratio
please help thank you!!!
Answer:
Q2 answer is x=24⁰
Q3 answer is angle MEN=150⁰
Step-by-step explanation:
Take a look at both the photo solutions above for both questions. Thank you very much!
HELP ASAP!!(WILL GIVE BRAINIEST) (Make sure to say where to plot the dots and explain why)
Answer:
The y-intercept is (0,0) the slope is -1/3
Step-by-step explanation:
The y-intercept is the point where the line intercepts with the y-axis. The slope is rise over run. It's equation is y2-y1/x2-x1. The points I used are (-3,1) and (3,-1). This makes -1-1/-3-3=2/6 which is equivalent to -1/3.
Answer:
Slope -> -1/3
y intercept -> 0
Step-by-step explanation:
Well this is actually very simple.
We have to find the y intercept and slope that’s it.
and we know that the y intercept it’s the point the line touches the y axis and that slope is how far away points are from each other on a line.
So looking at the graph the y intercept is 0, located at (0,0) or the origin.
And so to find the slope we can use the following formula \(\frac{y^2-y^1}{x^2-x^1}\).
Sk we need 2 points for this, we can use (0,0) and (3,-1)
So -1 is y2 and 0 is y1 and -1 - 0 is -1.
And now 3-0 is 3.
So the slope is -1/3.