Answer:
1. 93 min2. 123703. 0.17Step-by-step explanation:
1. ...................................
Speed of Leif:
1/2.5 = 2/5 of the job in an hourSpeed of Autumn:
1/4 of the job in an hourTogether their speed is:
2/5 + 1/4 = 8/20 + 5/20 = 13/20They spend total time for full job:
20/13 hour = 1 7/13 hour = 60 + 7/13*60 min ≈ 93 min2. ...................................
Leaves with red = 5550Leaves with yellow = 6820Leaves with both yellow and red = 4370Total number
5550 + 6820 = 123703. ...................................
Total number = 12370Yellow = 6820Probability of 3 consecutive yellow leaves:
6820/12370*6819/12369*6818/12368 = 0.17 rounded to the nearest hundredthsA grass fertilizer is sold in 5-pound bags. Stuart calculates that he needs enough fertilizer to cover 4,350 square feet. If each pound of fertilizer covers 362.5 square feet, how many 5-pound bags does Stuart need to buy?
Answer:
3
Step-by-step explanation:
6143 × 45 work out
Answer: 276,435
Step-by-step explanation:
yes
Pre-calc. I need help NOW
I need help if you can help me plz I would really appreciate it ?
Answer:
y = ( - 3)x + 8
Step-by-step explanation:
(1, 5),
(8, - 16)
m = ( - 16 - 5 ) / (8 - 1) = - 3
y - 5 = - 3(x - 1)
y = ( - 3)x + 8
Which expression would be easier to simplify if you used the associative property to change the grouping?
A. ( 50 + 50 ) + 63
B. ( 43 + 60 ) + 40
C. ( 2/5 + 3/5 ) + 7/3
D. [ - 14 + ( - 26 ) ] + 67
Answer:
probably A
Step-by-step explanation:
HELP !
CLICK ON THE PHOTO FOR QUESTION. ALOT OF POINTS GIVEN AWAY!
Answer:I believe the answer is A.
Step-by-step explanation:
0.05 x 51.00 = 2.55
2.55 + 51.00= 53.55
Select the correct answer from each drop-down menu. The velocity, v, in meters/second, of an object with a mass of m, in kilograms, and kinetic energy of K, in joules, is given by this equation. Use the equation to complete this statement. The kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second is joules.
Answer:
25
Step-by-step explanation:
The kinetic energy of a ball with a mass of 2 kg that is rolling at a velocity of 5 m/s is 5 Joules
Calculating Kinetic energyFrom the question, we are to determine the kinetic energy of the ball
From the given equation for the velocity,
[tex]v = \sqrt{\frac{2K}{m} }[/tex]
We will make K the subject of the equation
[tex]v = \sqrt{\frac{2K}{m} }[/tex]
Take the squares of both sides
[tex]v^{2} ={\frac{2K}{m} }[/tex]
Multiply both sides by m
[tex]mv^{2} ={\frac{2K}{m} } \times m[/tex]
[tex]mv^{2} =2K[/tex]
∴ [tex]K = \frac{1}{2} mv^{2}[/tex]
Now, for the kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second
That is,
m = 2 kg
and v = 5 m/s
Putting the parameters into the equation, we get
[tex]K = \frac{1}{2} \times 2 \times 5^{2}[/tex]
K = 25 J
Hence, the kinetic energy of a ball with a mass of 2 kg that is rolling at a velocity of 5 m/s is 5 Joules
Learn more on Calculating kinetic energy here: https://brainly.com/question/25959744
Here is the complete question:
Select the correct answer from each drop-down menu. The velocity, v, in meters/second, of an object with a mass of m, in kilograms, and kinetic energy of K, in joules, is given by this equation.
[tex]v = \sqrt{\frac{2K}{m} }[/tex]
Use the equation to complete this statement. The kinetic energy of a ball with a mass of 2 kilograms that is rolling at a velocity of 5 meters/second is joules.
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18inch/4secs how far would the car travel in 1 second?
Answer:
4.5 inch per 1 sec
Step-by-step explanation:
18/4=4.5
Find the Error A student graphs the relationship y = x on a coordinate plane. She says the slope is O because there is no coefficient. Find her
mistake and correct it.
Answer:
y=x times factor of 12 abstracted by -93
Step-by-step explanation:
The slope is the ratio of y's coordinate to x's coordinate thus the slope of y = x will be y/x = 1.
What is the slope?A slope is a tangent or angle at a point or a slope is the intensity of inclination of any geometrical lines.
Slope = Tanx where x will be the angle from the positive x-axis at that point.
A linear equation or function is given as ;
y = mx + b
Now,
At x = 0 ⇒ y = b so it will be a y-intercept.
As per the given, y = x
The x's coefficient is 1 thus slope will be 1.
Or, y/x = 1
Hence "The slope is the ratio of y's coordinate to x's coordinate thus the slope of y = x will be y/x = 1".
To learn more about slopes,
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Find the amount of simple interest that $400 would earn at 8% per year by the end of 3 years.
Answer:
400 times 8%= 32 times 3=96
Step-by-step explanation:
please solve-3(×-2)=2(×-7) and write a reason for each step
Why is 25 a composite number? (1 point)
It is odd.
OIt has more than two factors.
O All of its factors are prime numbers.
It is not divisible by any number except one and itself.
Answer:
it has more than 2 factor
Answer:
I think its b I'm pretty sure
what is the slope of the line? SOMEONE HELP ME PLSSS
What is the opposite of –0.8?
Answer:
0.8
Step-by-step explanation:
its positive not negative
Answer:
0.8
Step-by-step explanation:
Common Sense sir
the domain _ is the set of inputs for a function
Which of the following ordered pair(s) is/are solutions to the following system of
equations?
3x - 5y = 15
5x – 10y = 25
(11,3)
(3. - 1)
(-7,- 6)
All of the above
Answer:
none of them the correct answer is (x,y) (5,0)
Which table represents y as a function of x?
PLEASE HELP??
OR BRAINLIEST:((??
What is the area of the figure?
3 yd
6 yd
9 yd
Syd
Answer:
D) 48 yds^2
Step-by-step explanation:
A=(h(b)b)/2
Right side triangle equals 12
Left side triangle equals 9
A=wl
Rectangle equals 27
9+27+12=48
What is the square root of 1,567?
Answer:
39.585
Step-by-step explanation:
The number of students enrolled at a college is 13,000 and grows 4% each year, what is the initial amount
Answer:
13,000
_____
4%
I'm sorry if this is incorrect
Plz help me with 6th grade math- I’m dumb
???????? Helppppp :(
What do you learn in Algebra 2 that you did not learn in Algebra 1. Is Algebra 2 just a review?
Answer:
what grade are you in, im in 7th but im doing algebra.
Step-by-step explanation:
The diagram shows a dilation. Which dilation does it represent?
What is the scale factor?
Answer:
The diagram shows a dilation
Which dilation it represent ?
Enlargement
What is scale factor?
2
Step-by-step explanation:
I hope I helped
The type of the dilation is enlargement and with a scale factor of 2.
What is dilation?The stretching or shrinking of the image after transformation is called dilation.
Given that, The diagram shows a dilation.
As we see that, the length of OA = 3 units and
Length of OA' = 3+3 = 6 units
That means, figure is stretching, that means the type of the dilation is an enlargement.
The scale factor = 6/3 = 2
Hence, the type of the dilation is enlargement and with a scale factor of 2.
Learn more about dilation, click;
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solve for x: 2x- 2 =3(x- 2)
Answer:
x=4
Step-by-step explanation:
2x- 2 =3(x- 2)
2x- 2 =3x- 6
+2. +2
2x. =3x - 4
-3x. -3x
-1x. = -4
Divided - 1 both side
x=4
Alana biked 15 miles in 1 hour. How many miles did she bike in 3 hours?
Answer:
45 miles
Step-by-step explanation:
15 miles = 1 hour
15 x 3 = x
x = 45
45 miles = 3 hours
how to find square root of 8653
Answer:
I don't think you can so keep the number 8653 under the radical :)
Answer:
you cant do it so keep the number 8653
Step-by-step explanation:
PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((
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Answer:
can you be more specific with your question?
Step-by-step explanation:
As what I understood your question to be
(a-t)^2 -(t + a)
when a is 8, and t is 3
(8-3)^2 - (8+3)
(5)^2- (11)
25- 11
= 14
Determine if the figures below are congruent? Explain why or why not. I need it for a test please answer fast!
Answer:
Yes they should be congruent ones just at a different angle.
Step-by-step explanation:
