Answers
Answer:
30km/h
Step-by-step explanation:
takes 4 hours to go 120km so 120/4=30 so they travel 30 km in one hour
Related Questions
Find the sum or difference of the polynomials (x2−xy+y2) − (x2+xy+y2)
Answers
show that the area of the rectangle ABCD is 3 route 5 cm
Answers
Answer:
Please see the attached picture for the full solution.
60% of a firm's employees are men. Suppose four of the firm's employees are selected. a. What is the random variable we can consider here? b. What is probability of finding three men and one woman? c. What is the answer for part if 75% of employees were men?
Answers
Answer:
60% of the employees are men.
Then the 40% left must be women.
4 of them are selected.
a) What is the random variable we can consider here?
A random variable is a variable that can have different outcomes or values, in other words, it is a stochastic variable.
We have a selection of 4 employees at random, then we can define the variable X, that represents (for each employee) the possibility of being man or woman.
b) Probability of 3 men and 1 woman.
Suppose that the selection is in the order:
man-man-man-woman.
We have:
0.6 tree times.
0.4 one time.
P = 0.6^3*0.4
But this is for the case where the woman is in the last selection, it can be in the first, second and third, then we have 4 permutations, the actual probability is:
P = 4*( 0.6^3*0.4) = 0.3456.
c) If now we have tat 75% are men, then 25% are women.
Now we can do the same as before, but now the probability for a man is 0.75 and for a woman is 0.25, then the previous equation is now:
P = 4*(0.75^3*0.25) = 0.421875
(a) The random variable will be "Men percentage".
(b) The probability of finding 3 men and one woman be "0.3456".
(c) The probability be "0.4219".
Probability(a) A random variable represents a variable which might have several occurrences as well as quantities; it is indeed a stochastic quantity.
If we choose four workers at random, users may create the variable X, which reflects the potential of someone being a male or even a woman.
(b) The probability be:
→ P(3 men and women) = [tex]4C_3[/tex] (0.6)³ (1 - 0.6)¹
= 0.3456
(c) The probability be:
→ P(3 men and women) = [tex]4C_3[/tex] (0.75)³ (1 - 0.75)¹
= 0.4219
Thus the response above is correct.
Find out more information about probability here:
https://brainly.com/question/24756209
k(n)=3n+2; Find k(0)
Answers
Answer:
2
Step-by-step explanation:
substitute 0 for n:
3(0)+2
=2
Answer:
2
Step-by-step explanation:
-(1+7x)-6(-7-x)=36 what is x equal to
Answers
Answer:
x = 5
Step-by-step explanation:
Step 1: Write equation
-(1 + 7x) - 6(-7 - x) = 36
Step 2: Solve for x
Distribute: -1 - 7x + 42 + 6x = 36Combine like terms: -x + 41 = 36Subtract 41 on both sides: -x = -5Divide both sides: x = 5Step 3: Check
Plug in x to verify it's a solution.
-(1 + 7(5)) - 6(-7 - 5) = 36
-(1 + 35) - 6(-12) = 36
-(36) + 72 = 36
-36 + 72 = 36
36 = 36
Which of the following is the closest approximation to V20 ?
A 2
B. 3
C. 4
D. 5
Answers
Answer:
B.3
Step-by-step explanation:
Why because like 3 my favorite number and i had this same problem and the answer was 3.
4-x/2=6 solve for x.
jkjhjk
Answers
-x+8/2=6
-x+8=12
-x=4
x=-4
A small scoop hold 75% as much as a large scoop. If the small scoop holds
36 units, how much does the large scoop hold?
Please help! This is 38 points for a simple question :(
Answers
Answer:
Large scoop holds 48 units.
Step-by-step explanation:
Large: x
Small: .75x = 36
x = 48 units
missing variable -3 x + 9 = -18
Answers
Answer:
x=9
Step-by-step explanation:
Plug it in. -3(9)+9=-18
Hope this helps. Plz give brainliest.
Answer:
1. Subtract 9 from both sides
-3x = -27
2. Divide by -3 on both sides
x = 9
FINAL ANSWER x = 9
Please help quickly
Answers
Answer:
m∠PQR = 133
Step-by-step explanation:
∠PQR and ∠RQS are supplementary angles, meaning they have a sum of 180°.
3x - 5 + x + 1 = 180
4x - 4 = 180
4x = 184
x = 46
Now we simply substitute 46 in for x:
3(46) - 5 = 133
Which statement is true? Use the number line to help. A number line going from negative 2.5 to positive 2.5 in increments of 0.5. –2 is greater than Negative 2 and one-half. 1.5 is less than 1 1 is less than Negative one-half. Negative 1 and one-half is greater than Negative one-half.
Answers
Answer:
-2 is greater than Negative and one-half
Step-by-step explanation:
The number is further from zero towards the negative portion o the number line making it of lesser value.
2.
What is the volume of a cone with a radius of 3 feet and a height of 6 feet? Use 3.14 for pi. Round your answer to the nearest hundredth. (4 points)
Answers
Answer:
56.55
Step-by-step explanation:
Mrs.Reynolds is picking up 17 playground balls after recess and she wants to put the same number of balls into each ball bin . What are the different ways she could group the balls
Answers
Find the missing angle in the triangle
Answers
Answer:
61.
...juodkybog itt g8txogit I.
Answer:
C- 61 degrees
Step-by-step explanation:
56+63+x= 180 (angle sum of triangle)
119+x=180
x=180-119
x= 61
Therefore ans= C
Help please!! I’ll give brainlies
Answers
Answer:
90= 1st
59=2nd
48= 3rd
-56=4th
-80=5th
-84=6th
Step-by-step explanation:
Answer:
1 (6th) 90, 2(2nd) -80 3 (3rd) -56 4th(1st) -84 5 (5th) 59 6th (4th) 48
Step-by-step explanation:
What is the equation of this line?
Answers
Answer:
A
Step-by-step explanation:
Rise over run up one unit over 2 and the y int is at -3
my friend needs help someone answer asap
Answers
Answer:
acute and obtuse angles .
Lou wants to lose weight to audition for a part in a play. He weighs 160 pounds now. He wants to weigh 150 pounds. If p represents the number of pounds he wants to lose, write an equation to represent this situation.
Answers
Answer:
160-p=150
Step-by-step explanation:
160 now - needs to lose = 150 goal
help please! i don’t understand how to do this!
Answers
Answer:
x=c+b/a
Step-by-step explanation:
ax-b=c
+b +b
ax=c+b
__ ___
a=c+b/a
Answer:
D
Step-by-step explanation:
Given
ax - b = c ( add b to both sides )
ax = c + b ( isolate x by dividing both sides by a )
x = [tex]\frac{c+b}{a}[/tex] → D
Need the answer pls and thank you
Answers
Answer:
y=1.75x
Step-by-step explanation:
Hope this helps
For the function, f(x) = −x2, find f(-3)
Answers
Hope this helpsssss
The distance, D, travelled by a particle is directly proportional to the square of the time, t, taken. When t = 40, D = 30. find a formula for D in terms of t. Calculate the value of D when t = 64
Answers
Answer:
The formula for D in terms of t is D=0.01875t²
The value of D is 76.8
Step-by-step explanation:
See above for an image
Hope I helped!
After calculating by definition of proportionality, the value of D is 76.8
What is Proportional?Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.
Given that;
The distance, D, travelled by a particle is directly proportional to the square of the time, t.
So, We can defined as;
⇒ D = k × t²
Where, 'k' is constant of proportion.
Here, When t = 40, D = 30,
⇒ D = k × t²
⇒ 30 = k × 40²
⇒ 30 = k × 1600
⇒ k = 30 / 1600
⇒ k = 3/160
So, When t = 64, the value of D is,
⇒ D = 3/160 × 64²
⇒ D = 76.8
Learn more about the proportion visit:
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Write the equation of the line that is parallel to y=3x+1 that passes through (2,3)
Answers
Answer:
Y=3X+3
Step-by-step explanation:
Y=mx+b
m=3
when x=2 and y=3 b=3
Line m passes through points (2,-5) and (4,-3). Line n passes through points (-4,-8) and (-6,-6). Are lined m and n perpendicular? Explain?
A. Yes, the lines are perpendicular because the product of their slopes does not equal -1.
B. Yes, the lines are perpendicular because the product of their slips equals -1.
C. No the lines are not perpendicular because the product of there slopes equals -1.
D. No the lines are not perpendicular because the product of their slopes does not equal -1
Answers
The table shows four swimmers who raced against each other at a swim meet.
Which list shows the swimmers in order by their completion times from slowest to fastest
Answers
Answer:
Since you didn't provide the answer choices, it should look like something like this:
(from slowest to fastest)
Addison
Michael
Bryce
Susan
Explanation:
When you convert all the fractions into decimals, you can see and compare times easier.
Susan > 25.09
Bryce > 25.50
Addison > 25.80
Michael > 25.33 (the 3's go on practically forever, thats why it is usally shortened.)
4,362,784 rounded to the greatest place value is?
Answers
Answer: 4,000,000
Step-by-step explanation:
4 is the greatest in place values. 3 is lower than 5 so 4 stays the same.
Answer:
The answer is 4,000,000.
Step-by-step explanation:
The greatest place value is the digit closest to the left. 4,362,784 rounded to the closest million is 4,000,000.
One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the
third angle is 50 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
Answers
Step-by-step explanation:
no need.,..................
....
A right triangle with angle measures of 45, 45, 90 degrees undergoes a reflection, rotation, and translation. Determine whether the angle measure of the image of the triangle are 45, 45 and 90 degrees after each transformation. Choose yes or no.
Answers
Answer:
Reflection - Yes
Rotation - Yes
Translation - Yes
Step-by-step explanation:
After all 3 different transformations, the angle measures of the triangle will stay the same, at 45, 45, and 90 degrees.
This is because these 3 transformations do not change the shape of the triangle. They only change the orientation and placement of the triangle.
So, the angle measures will still be 45, 45, and 90 degrees after each transformation.
Answer:
Yes, the correct answer to this question is Yes.
what is 2 1/2 divided 2 2/3?
Answers
Answer:
0.9375
Step-by-step explanation:
Answer:
0.9375
Step-by-step explanation:
What is the solution to this equation:
X+7=-8
Answers
Answer:
[tex]\boxed {x = -15}[/tex]
Step-by-step explanation:
Solve for the value of [tex]x[/tex]:
[tex]x + 7 = -8[/tex]
-Subtract both sides by [tex]7[/tex]:
[tex]x + 7 - 7 = -8 - 7[/tex]
[tex]\boxed {x = -15}[/tex]
So, the value of [tex]x[/tex] is [tex]-15[/tex].