one of these students is chosen at random. what is the probability of picking a student who scored above 65
Answer:
7/18
Step-by-step explanation:
7 students received a score greater than 65, out of a total of 18 students
The probability of picking a student who scored above 65 is 1/3 when one of these students is chosen at random.
To calculate the probability of picking a student who scored above 65, we need to determine the number of students who scored above 65 and divide it by the total number of students.
Looking at the given marks:
46, 65, 54, 57, 62, 73, 73, 47, 69, 48, 63, 68, 55, 48, 58, 71, 76, 70
We can see that the marks above 65 are: 73, 73, 69, 68, 76, 70 (a total of 6 marks).
Now, let's calculate the probability:
Probability = Number of favorable outcomes / Total number of outcomes
Number of favorable outcomes (students who scored above 65) = 6
Total number of outcomes (total number of students) = 18
Probability = 6 / 18
Simplifying the fraction:
Probability = 1 / 3
Therefore, the probability of picking a student who scored above 65 is 1/3.
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The complete question is :
Here are the marks 18 students got in a Maths test: 46, 65, 54, 57, 62, 73, 73, 47, 69, 48, 63, 68, 55, 48, 58, 71, 76, 70. a) Show this information in an ordered stem and leaf diagram: 5 | 4 4 7 8 8 6 | 2 3 5 8 7 | 0 1 3 3 8 | 9 | 6 b) One of these students is chosen at random: What is the probability of picking a student who scored above 65?
i only got this partially correct what did I get wrong
Answer:
I don't see anything wrong
Step-by-step explanation:
It maybe just me but I don't know what you got wrong
An equation is shown.
x=2= 26
What is the value of x?
A.13
B. 24
c. 28
D. 52
what’s the value please
Answer:
You are right the anwser is D
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
We can describe 12x - 8 as an expression.
It can also be written as 4(3x - 2)
4 and 3x - 2 are both
of 12x - 8
Answer:
factors
Step-by-step explanation:
Since
12x - 8 = 4(3x - 2) ← in factored form
This means that 4 and 3x - 2 are factors of the expression
Directions:
Using the digits 1 to 6, at most one time each, fill in the
boxes so that top two equations are equal and the
bottom equation has the greatest value.
You can move the numbers around on the graph to
help.
First Attempt:
column 1
column 2
Please help!!! Will give brain and 5 stars!!!
22.) FJ = KH
23.) <KEH = <JGF
Hope it helps ⭐⭐⭐PLS I REALLY NEED HELP IM USING ALL MY POINTS ON THIS AND RED TILES ARE NEGATIVE BTW!
Answer:
59874
Step-by-step explanation:
please help!!
(pre al)
Answer:
y=1x+1
Step-by-step explanation:
Joe bought g gallons of gasoline for $2.65 per gallon and c cans of oil for $3.45 per can. a. What expression can be used to determine the total amount Joe spent on gasoline and oil? b. If he bought 8.4 gallons of gasoline and 9 cans of oil, how much did he spend in all?
Step-by-step explanation:
PART A
a=total amount
c=cans of oil
g=gasoline
a=2.65g+3.45c
PART B
a=2.85(8.4)+3.15(6)
a=23.94+18.90
a=42.84
Hope that helped =)
Please help I don’t fully get this
Answer:
First one is C
Second one is B
Step-by-step explanation:
How is the quotient 5 to the 8th power expressed as a power of 5
Answer:
5^4
Step-by-step explanation:
When dividing exponents with the same base, you subtract their exponents.
8-4=4
This means that 5^8 / 5^4 is equal to:
5^4
Please help this is dew in 20 minutes
Answer:
It would be A.
You can trust me because a right angle is 90 degrees, so you would add the two angles.
Answer:
A
Step-by-step explanation:
Which expression is equvalient to the expression shown
Answer:
4^6
Step-by-step explanation:
Find the slope of the line on the graph below
Answer:
[tex]\frac{6}{5}[/tex]
Step-by-step explanation:
The slope is [tex]\frac{6}{5}[/tex] because rise/run. You rise up on the graph 6 units, and run 5 units to the right (if the graph went to the left), then your slope would be negative.
Another way to double check this is using the slope formula: [tex]\frac{y_{2} - y_{1} }{x_{2} - x_{1} }[/tex].
(-3, -3) is x1, y1. & (2, 3) is x2, y2.
So, plugging that into the formula, we get:
[tex]\frac{3-(-3)}{2-(-3)}[/tex] = [tex]\frac{6}{5}[/tex].
Hope that this helped. Have a good day! ☺
*Refresh page, if you cannot see the answer. If it still does not work, the answer is 6/5*
Mr. Pickle bought an iPod from his friend who claims that the iPod was worth $250.00
when he bought it. The iPod's value decreases exponentially at the same rate each
year, and one year later the iPod's value is $187.50. By what percentage is the iPod's
value depreciating each year?
Answer:
437.5
Step-by-step explanation:
i added both of em
Math* please help!!!!
Answer:
I think its 19.1
Step-by-step explanation:
14 + 5.1
Maybe try
2. A submarine dives 60 meters in 5 minutes. Find how quickly it dives in feet per second (recall 1 meter = 3.28084 feet). How many feet can it dive in 6 minutes and 34 seconds?
Answer:
258.54 feet
Step-by-step explanation:
Step 1
We convert 60 meters to feet
1 meter = 3.28084 feet
60 meters = x
Cross Multiply
x = 60 × 3.28084 feet
x = 196.8504 feet
60 meters = 196.8504 feet
Step 2
How many feet can it dive in 6 minutes and 34 seconds
We convert 34 seconds to minutes
60 seconds = 1 minute
34 seconds = x
Cross Multiply
60 × x = 34 × 1
x = 34/60
x = 0.567 minutes
So, 6 minutes and 34 seconds = 6 + 0.567 minutes = 6.567 minutes.
60 meters in 5 minutes.
60 meters = 196.8504 feet
Hence:
5 minutes = 196.8504 feet
6.567 minutes = x
Cross Multiply
5x = 6.567 × 196.8504 feet
5x = 1292.7165768 feet
x = 1292.7165768/5
x = 258.54331536 feet
Approximately = 258.54 feet
Therefore, the submarine can dive 258.54 feet in 6 minutes 34 seconds
I HATE MATH SM ITS NOT FUNNY, HELP ME (please)
Answer:
11) 2
12) 1
13) 6
14) 6
15) m<1=58°
m<2=122°
m<3=58°
m<5=122°
m<6=58°
m<7=122°
m<8=58°
Step-by-step explanation:
11) 2
12) 1
13) 6
14) 6
15) m<1=58°
m<2=122°
m<3=58°
m<5=122°
m<6=58°
m<7=122°
m<8=58°
In comparison 1/3to where would 3/9be
located on a number line
A
closer to o
В.
the same point
C.
closer to 1
D
At 0
In comparison to 1/3 to 3/9, both numbers are located at the same point on a number line.
What is a number line?It is defined as the representation of the numbers on a straight line that goes infinitely on both sides.
It is given that:
In comparison 1/3 to where would 3/9 be located on a number line
As we know, a number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
1/3 = 0.333
3/9 = 1/3 = 0.333
If we plot the above fractions on a number line we will see these two fractions are on the same point.
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.
Thus, in comparison to 1/3 to 3/9, both numbers are located at the same point on a number line.
Learn more about the number line here:
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In one part of a kennel, 5/8 of the 24 dogs are male. In another part of the kennel, 4/5 of the 30 dogs are male.
How many male dogs are in the two parts of the kennel?
Answer:
39
Step-by-step explanation:
The computation of the number of male dogs in the two parts of the kennel is shown below:
In one part, the male dogs are
= 24 × 5 ÷ 8
= 15
In the another part, the male dogs are
= 30 × 4 ÷ 5
= 24
So, the total male dogs is
= 15 + 24
= 39
3(2x - 5) - 2 = x + 8
Answer:
5
Step-by-step explanation:
3(2x-5)-2=x+8
6x-15-2=x+8
6x-17=x+8
6x-x-17=8
5x-17=8
5x=8+17
5x=25
x=25/5
x=5
what is the missing number
Answer i believe the rule is y= x/2 so n=6
Step-by-step explanation:
Write a function rule that gives the total cost c(p) of p pounds of flour if each pound costs $3. How
much would it cost for a three pound bag of sugar?
Answer:
C(p) = ($3/pound)p
$9
Step-by-step explanation:
C(p) = ($3/pound)p is the applicable rule.
Three pounds would cost C(3) = ($3/pound)(3 pounds) = $9
at point (0,2) can be reflected across the x-axis PLEASE HELP 50 POINTS true pr false
Answer:
Please check the explanation.
Step-by-step explanation:
When a point P(x, y) is reflected across the x-axis, all we need to do is to reverse the sign value of the y-coordinate of any given point while the x-value remains the same.
Thus,
The rule to reflect over the x-axis is:
P(x, y) → P'(x, -y)
In our case, the point, let's say A(0, 2), is reflected across the x-axis. Thus, the coordinates of A' will be:
P(x, y) → P'(x, -y)
A(0, 2) → A'(0, -2)
So, YES! point A(0,2) can be reflected across the x-axis and the coordinates of A' will be: A'(0, -2).
Joey is 5 feet tall and casts a 45-foot shadow. A building casts a 270-foot shadow at the same time. How tall is the building?
HELP FOR POSSIBLE BRAINLIEST
Answer:
the building is thirty feet tall
Step-by-step explanation:
so make a ratio of shadow to joey
5:45
simplify that to
1:9
so you can now divide 270 by nine
30
the building is thirty feet tall
HELP ME ASAP PLEASE ?!?
Find the length of the missing side. Simplify all radicals.
i think it’s 6......... Sorry if I got it wrong I’m trying to help people out Answer:
Step-by-step explanation:
6.5,5.5,4.5,3.5,_,_
What’s the number pattern?
Answer:
minus 1
Step-by-step explanation:
Answer:
2.5, 1.5
Step-by-step explanation:
should be easy, but that's my opinion
Hope this helps :)
A computer monitor is 23 inches which is the diagonal distance across the screen.If the screen measures 13 inches in height,what is the actual width of the screen to the nearest inch?
Answer:
width = 19 inches
Step-by-step explanation:
Pythagorean theorem
23^2 = 13^2+x^2
529 = 169+x^2
x^2 = 360
x = 18.97
The actual width of the screen to the nearest inches will be 18.97 inches.
What is a Pythagoras theorem?The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.
The Pythagoras theorem formula is given as
H² = P² + B²
A PC screen is 23 inches which is the slanting distance across the screen.
If the screen measures 13 inches in height. Then the actual width of the screen will be given as,
23² = 13² + B²
529 = 169 + B²
B² = 360
B = √360
B = 18.97 inches
The actual width of the screen to the nearest inches will be 18.97 inches.
More about the Pythagoras theorem link is given below.
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You get a $400 base salary for your job selling toasters. You also get a 2% commission on all your sales . If you had $390 in sales , what is your take home pay ?
Answer:
$17,800 ?
Step-by-step explanation:
