The railroad crew repair 1500 km in 25 days if the railroad crew can replace 360 meters of rails in 6 days
What is a fraction?Fraction number consists of two parts one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
We have:
A railroad crew can replace 360 meters of rails in 6 days.
Let's suppose the x kilometers of rail they can repair in 25v days
Per day they repair = 360/6 = 60 km/day
Then the x can be found:
x = 60×25
x = 1500 km
Thus, the railroad crew repair 1500 km in 25 days if the railroad crew can replace 360 meters of rails in 6 days.
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the ratio of ________to ____________is 4:6 because ther are 4 __________ for every 6 ___________.
Answer:
the ratio of apples to oranges is 4:6 because there are 4 apples for every 6 oranges.
Step-by-step explanation:
you roll a six-sided die. find the probability of the event described. explain your reasoning: you roll a number less than three
Can someone help me, please and i will mark the person that get it right brainiest
Answer:
(a) Grade 6
Step-by-step explanation:
You want to know which grade (6 or 7) has the higher mean score, based on the given dot plots.
RangeThe scores of Grade 6 range from 70 to 100. Those of grade 7 range from 50 to 80.
MeanBoth distributions are approximately symmetrical, but have slightly more scores farther below the middle of the range than above. This means the mean in each case will be slightly below the middle of the range.
Even so, the mean of Grade 6 scores will be substantially above the mean of Grade 7 scores. Grade 6 has the higher mean score.
__
Additional comment
Assume the mean of Grade 6 is 85, the middle of the range of scores. Subtract the fewest number of dots (4) from each column, and we have 2 scores 15 units below that assumed mean, and 2 scores at 5 units above that assumed mean. The total of these is 2(-15) +2(+5) = -20. This tells us the actual mean of Grade 6 scores is -20/20 = -1 from the assumed mean of 85. The Grade 6 mean is 84. This is higher than any Grade 7 score, so Grade 6 must have the higher mean.
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Which is the graph of the solution set of 5 - 2 > 5?
O A.
-18
o
18
42
O B.
-18
0
18
42
+
Oc.
-18
O
+
18
42
D.
-18
+
0
18
42
Answer:
OC
Step-by-step explanation:
I got it right on my test!
1/200
written as a finite decimal work shown
please help me with this thanks so much to whoever is helping me
Answer:
X = 80
Step-by-step explanation:
A flat line is equal to 180 degrees, meaning that if you use linear, you can find out that if you subtract 100 from it, it becomes 80, which resembles the X.
please help me (NO LINKS PLEASE)
Yvette spins the following spinner 35 times.
A spinner with 5 equal sections labeled 1 through 5.
How many times should she expect it to land on 4?
Enter your answer as a number, like this: 42
Answer:
7 times
Step-by-step explanation:
Prob of landing on 4: 1/5
1/5 * 35 = 7
Answer: 7
Step-by-step explanation:
Dana plans to use a survey of 60 randomly selected students at her school to predict the percentage of the 900 students at her school who will attend next week's school dance. How can Dana change her data collection plans to make her prediction closer to the actual result?
Answer:
See below ~
Step-by-step explanation:
Dana takes a survey of 60 students out of 900 total to see how many will attend the dance.
Based on whatever result she gets out of the 60 students, she can take that number and multiply it by 15 to get a closer prediction to the actual result.
This is because 60 x 15 = 900We are basic taking a ratio of the smaller portion so we can estimate the value of the larger group Can a probability more than one or 100% Explain.
Answer:
No. Only 1 to 100, logically.
Let's make a scenario to solve this.
So let's say I have an all yellow, 9 quarter spinner board and I spin. It will always land on yellow, so it has a 9/9 or 100% chance of landing on yellow.
Now we must create another scenario.
For instance, I have one bottle, its starting direction was North, and I spin it. It will have a 1/4 chance of landing on North, East, South, or West because it will land in a random direction. For the 4 diagonal directions southeast, southwest, northeast, northwest it will be the same because there are only 4 directions, therefore giving the probability a 1 in 4 chance of landing on either one. :)
No. Only 1 to 100, logically.Let's make a scenario to solve this.So let's say I have an all yellow, 9 quarter spinner board and I spin. It will always land on yellow, so it has a 9/9 or 100% chance of landing on yellow.Now we must create another scenario.For instance, I have one bottle, its starting direction was North, and I spin it. It will have a 1/4 chance of landing on North, East, South, or West because it will land in a random direction. For the 4 diagonal directions southeast, southwest, northeast, northwest it will be the same because there are only 4 directions, therefore giving the probability a 1 in 4 chance of landing on either one. :)
Step-by-step explanation:
How does knowing the coordinates of a point P in the Cartesian plane help you determine the trigonometric ratios associated with the angle formed between the initial and terminal arm for the angle? Use an example to help you explain.
The cosine and the sine of the angle are the x and y coordinates of P, respectively
The relationship between the coordinates and trigonometry ratiosAssume that the coordinate of a point P is:
P = (x,y)
The trigonometry ratios are represented using:
(cos(t), sin(t))= (x,y)
Where t represents the angle formed between the initial and terminal arm.
Hence, the cosine and the sine of the angle are the x and y coordinates of P, respectively
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(8. 69×10to the power of 8)–(9. 6×10 to the power of 6
Answer:
3.25×10^15
Step-by-step explanation:
(8.69×10)^8_(9.6×10)^6. (3.25)×10^15_(7.83)×10^11=3.25×10^15
What does the constant of variation of 340 represent in this situation? total number of waves height of the waves in meters speed of the waves in meters per second time in seconds for one wave to pass a given point
Answer:
C: Speed of the waves in meters per second
Step-by-step explanation:
on edge
The frequency is inversely proportional to the time. Then the correct option is D.
What is wavelength?The distance between two successive troughs or crests is known as the wavelength. The peak of the wave is the highest point, while the trough is the lowest.
The wavelength is also defined as the distance between two locations in a wave that have the same oscillation phase.
The table is given below.
The constant variation of 340 represents this situation will be
The frequency is inversely proportional to the time. Then it represents time in seconds.
More about the wavelength link is given below.
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What is the value of (-3 + 3) + (-2 + 3)?
O 5 - 61
0 -5 + 6
O 5 + 61
O 5-61
Answer:
Please check the question. As written, the value is 1, which is not amoung the answers
Step-by-step explanation:
(-3 + 3) + (-2 + 3)
(-3 + 3) = 0
(-2 + 3) = 1
0 + 1 = 1
Type the correct answer in the box. Use numerals instead of words.
A toy ball has a surface area of 7,543 square millimeters.
What is the radius of the toy ball to the nearest tenth of a millimeter?
The radius is millimeters.
Answer:
The answer is 7,540 to the nearest tenth. If I'm wrong put it in the comments olease
The radius of the toy ball is 24.5 millimeter (to nearest tenth)
What is the surface area of a sphere ?Let, r be the radius of the sphere.
Then the surface area of the sphere = [tex]4\pi r^{2}[/tex] sq. unit
How to find the radius of the toy ball?The structure of the toy ball is sphere.
Given, Surface area of the toy ball = 7543 square millimeter
Let, the radius be r millimeter
∴ [tex]4\pi r^{2}[/tex] = 7543
⇒ [tex]r^{2}[/tex] = [tex]\frac{7543}{4*3.14}[/tex] , where [tex]\pi[/tex] = 3.14
⇒ [tex]r^{2}[/tex] = [tex]\frac{7543}{12.56}[/tex]
⇒ [tex]r^{2}[/tex] = 600.56
⇒ r = [tex]\sqrt{600.56}[/tex]
⇒ r = 24.5 (approx)
Radius = 24.5 millimeter (to nearest tenth)
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Fill in the blanks!
Answer:
5(3x + 4y)
= (5×3x) (5×4y)
=15x + 20y
Step-by-step explanation:
Simplify by expanding
I'm not sure if this is the answer you want but I hope it helps
Tanisha, a manager at a state park, counted the money
in the cash register at the end of her shift, and then she
deposited the money in the bank. When she went back
to her office, she accidentally shredded the deposit
slip. She remembered that there were only $5 and $10
bills. She also recalled that there were 27 bills totaling
$205. How many $5 bills were in Tanisha's cash
register at the end of her shift?
Answer: 13
Step-by-step explanation:
[tex]$$Let $x$ be the number of \$5 bills \& let $y$ be the $10 \$$ bills.\\Then $x+y=27 \quad(\because$ total 27 bills $)$ - (1) \\ And $5 x+10 y=205 $\Rightarrow x+2 y=41 - (2)$$[/tex]
[tex]$$Now, (1) - (2) gives us.$$-y=14 \Rightarrow y=14$$Hence, $\quad x=13$\\So there were 13 \$5 bills.[/tex]
Is (1,9) a solution to this system of equations?
y=5x+4
y=2x+7
Answer:
yes , if you substitute X (1) in both the equations you will get y=9 and if you substitute y(9) in both the equations you will get X=1
There are 6 juice boxes in 1 pack. 12 in 2 packs, and 18 in 3 packs. How many juice boxes are in 4 packs? in 6 packs? Use the rule to complete the table. Describe features of the pattern Then find how many juice boxes are in 10 packs and 100 packs
Answer:
24 boxes in 4 packs.
36 boxes in 6 packs.
60 boxes in 10 packs.
600 boxes in 100 packs.
Step-by-step explanation:
If 6 boxes are in 1 pack and 12 in 2, you can use a ratio, which is 1:6 meaning for every 1 pack are 6 boxes.
There are two ways you can get an answer
Multiplication:
For however many packs there are you multiply it by 6 boxes.
For 4 packs, you multiply it by 6 boxes. You would get 24 boxes.
For 6 packs, you multiply it by 6 boxes again getting 36 boxes.
Below is a table I made for an example.
P | B
1 | 6
2 | 12
3 | 18
4 | 24
5 | #
6 | 36
10 x 6 is 60
100 x 6 is 600.
whenever the multiplier starts with 1 and ends in 0, just add the number of zeros behind that number. Example: 7 x 1,000,000 = 7,000,000
Help help with this question
Answer:
y-intercept: 4
slope: 2
Step-by-step explanation:
the 6th term is 22 and the common difference is 6 what is the fiftieth term?
Answer:
the fiftieth term is 76
Step-by-step explanation:
first subtract 15 by 6
15-6= 9
22+ 6 (9)
6 x 9= 54
22 + 54= 76
Answer: 76
Which expression is equivalent to 312 • 79?
Answer:
Step-by-step explanation:
20 points!! Will give brainilisest. ASAP!!
Answer:
Measure the border between the black lines and the distance between the two places. Then calculate the difference.
Step-by-step explanation:
EX: Let’s say distance is 10 inches distance and 7 inches distance between cities.
7/10–> 7x36/10x36
252/360
And then simplify!
1. The subject of the statement is also the _____ of the if-then form. *
1 point
Argument
Conclusion
Converse
Hypothesis
A term describing a division of observations into four
Answer:
The name of this term is a quartile.
The diameter of a flour tortilla is 12 inches. What is the area to the nearest hundredth?
Answer: 113.04 in^2
Step-by-step explanation:
area of a circle = pir^2
R = 12/2 = 6
A= 3.14 * 6^2
= 113.04
Entercept word problems
arn
r
2. the water in nate's swimming pool is
currently 72 inches deep. however, nate
noticed a hole in the liner that is causing
water to leak out of the pool. the depth of
the water is decreasing at a rate of 2 inches
per hour. which equation relates the depth
(d) of the water in inches after h hours?
5. Mrs. Taylor painted her bathroom.
She began painting at 10:45 a.m.
She painted for 3 hours and 45
minutes. What time did she
finish painting?
A. 1:30 p.m.
B. 1:45 a.m.
C. 2:15 a.m.
D. 2:30 p.m.
Answer:
D
Step-by-step explanation:
Add 10:45 by 3
How many games did the team play? NO LINKS!!!
Answer:
blurry
Step-by-step explanation:
Simplify:
((2x)/(3y ^ - 1)) ^ 2
Answer:
2xy²/9
Step-by-step explanation:
A regular heptagon has a radius of approximately 27.87 cm and the length of each side is 24.18 cm. what is the approximate area of the heptagon rounded to the nearest whole number? recall that a heptagon is a polygon with 7 sides. 1,173 cm2 2,125 cm2 2,359 cm2 4,250 cm2
The area of the regular heptagon which has a radius of approximately 27.87 cm and the length of each side is 24.18 cm is 2125 cm².
What is the area of a heptagon?Heptagon is the closed shape polygon which has 7 sides and 7 interior angles.
The area of the regular heptagon is found out using the following formula.
[tex]A=\dfrac{7a}{4}\cot \left(\dfrac{180}{7}\right)[/tex]
Here, (a) is the length of the heptagon.
A regular heptagon has a radius of approximately 27.87 cm and the length of each side is 24.18 cm. Put the value of side in the above formula,
[tex]A=\dfrac{7\times24.18}{4}\cot \left(\dfrac{180}{7}\right)\\A\approx 2125\rm\; cm^2[/tex]
Hence, the area of the regular heptagon which has a radius of approximately 27.87 cm and the length of each side is 24.18 cm is 2125 cm².
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Answer: b
Step-by-step explanation: