Please help will mark brainliest!! 15 POINTS!!
The data set, {81, 87, 71, 89}, represents Ken's test scores for the first four tests of the semester. Ken scored an 85 on the fifth test.
What impact does the 85 have on the mean test score?
Answers
(Add all numbers in set and divide by how many numbers there are)
81 + 87 + 71 + 89 = 328 / 4 = 82
Then, find the mean with the 85 added as the fifth term.
81 + 87 + 71 + 89 + 85 = 413 / 5 = 82.6
The impact that the 85 had on the mean test score was that the mean/average increased by 0.6.
Answer:
decrease
Step-by-step explanation:
If 89 is the highest score, Ken would need a score of 90+ to increase the mean.
[tex]Md < 89\\Mi >89[/tex]
Md = mean decreases
Mi = mean increases
Hope this helped!
Related Questions
PLS HELP ME!!!!!!!!!!! Satish's register shows a deposit on February 4 in the amount of $150.00, an atm withdrawal on February 5 in the amount of $180, and another deposit on February 7 in the amount of $225.56. What should Satish's balance in his register be? A. $610.82, B.$792.91, C.$910.82, or D.$947.14
Answers
Answer:
Balance = $195.56
Step-by-step explanation:
Credit:
Feb 4 deposit = $150.00
Feb 7 deposit = $225.56
Total credit = $375.56
Debit:
Feb 5 ATM withdrawal = $180
Total Debit = $180
Balance = credit - debit
= $375.56 - $180
= $195.56
Balance = $195.56
The answer is not included in the option. It is either the options are not correct or the values in the question are not correct. Please recheck
Satish's balance in his register would be $195.56
Equation
Equation is an expression used to show the relationship between two or more numbers and variables.
Credit:
Feb 4 deposit = $150.00
Feb 7 deposit = $225.56
Total credit = $150 + $225.56 = $375.56
Debit:
Feb 5 withdrawal = $180
Total Debit = $180
Balance = $375.56 - $180 = $195.56
Satish's balance in his register would be $195.56
Find out more on equation at: https://brainly.com/question/2972832
PLS HELP I WILL GUVE POINT
Answers
Answer:
D
Step-by-step explanation:
-3*7=-21k+2
Answer:
what thye said loll
Step-by-step explanation:
The perimeter of a rectangle with a length of 10 units which equation can be used to find the width of the rectangle
Answers
Answer:
2w + 20 = 55
Step-by-step explanation:
Here is the full question
The perimeter of a rectangle with a length of 10 units is 55 units. Which equation can be used to find the width, w, of the rectangle?
w + 10 = 55
w + 20 = 55
2w + 10 = 55
2w + 20 = 55
The perimeter of a rectangle's formula is = 2 ( length + breadth)
from the question ,
perimeter is 55 and length is 10
2(10 + w) = 55
20 + 2w = 55
The diagram shows a right-angled triangle. 37° 15 cm cm What is the value of h? Give your answer correct to 1 decimal place.
Answers
[tex]tan = \frac{opp}{adj} [/tex]
[tex] \tan(37) = \frac{opp}{15} [/tex]
[tex]h = 15 \tan(37) [/tex]
[tex]h = 11.3 \: cm[/tex]
Answer:
h ≈ 11.3 cm
Step-by-step explanation:
Using the tangent ratio in the right triangle.
tan37° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{h}{15}[/tex] ( multiply both sides by 15 )
15 × tan37° = h , that is
h ≈ 11. 3 cm ( to 1 dec. place )
When dividing fractions, the ________ term becomes the reciprocal
.
Neither
Second
Both
First
Answers
Answer:
The correct answer is SECOND
Step-by-step explanation:
KCF.
Keep
Change
Flip
Example
3/4 / 2/4
3/4 X 4/2
Hello can someone help solve this ?
Answers
Answer:
(-5, -2)
Step-by-step explanation:
Note that on the interval (-5, -2), the line segment representing the graph is pointed downward: y decreases as x increases.
5 rubber stamps cost $9.70. Which equation would help determine the cost 1 point
of 11 rubber stamps? Choose 1 answer. *
5
$9.70
11
$9.70
11
OA)
B)
$9.70
650.70
5
11
$9.70
OC)
OD)
Answers
Answer:
The equation would help determine the cost 1 rubber stamps will be:
[tex]\frac{9.7}{5}=\frac{x}{11}[/tex]
Step-by-step explanation:
Let x be the cost of 11 rubbers.
As the cost of 5 rubber stamps is $9.70.
Thus, the cost of 11 rubbers can be determined using the proportional ratios.
[tex]\frac{9.7}{5}=\frac{x}{11}[/tex]
BONUS! let us solve to check
[tex]\frac{9.7}{5}=\frac{x}{11}[/tex]
switch sides
[tex]\frac{x}{11}=\frac{9.7}{5}[/tex]
Multiply both sides by 11
[tex]\frac{11x}{11}=\frac{9.7\cdot \:11}{5}[/tex]
Simplify
[tex]x=21.34[/tex]
Thus, the cost of 11 rubber stamps: x = $21.34
Therefore, the equation would help determine the cost 1 rubber stamps will be:
[tex]\frac{9.7}{5}=\frac{x}{11}[/tex]
VERIFICIATIONGiven
The cost of 5 rubber stamps = $9.70
Thus,
The cost of 1 rubber stamps = 9.70 / 5
= $1.94
If the cost of 1 rubber stamp = $1.94
The cost of 11 rubber stamps = 11 × 1.94
= $21.34
Answer:
None of the above
Step-by-step explanation:
I did the test on khan
Chapitre 6. Proportionnalité (12) Approfondissement
Exercice Ai:
Une salle d'escalade propose 3 tarifs
Entrées :
Lasten
Le carne de Marcel
Abonneerd
La
1. Représenter graphiquement le prix en
fonction du nombre de séances dans un
trimestre.
2. Lequel des trois tarifs est proportionnel au
nombre de séances
3. Pour un trimestre, quel tarif choisir pour 6
seances ! 10 stances / 16 séances ?
Exercice Az
Les deux graphiques ci-dessous représentent
respectivement la distance de reaction et la
distance de freinage sur route seche d'un
vehicule en fonction de sa vitesse.
Distance de redier en m
1.b. La distance de
reaction
est-elle
proportionnelle à la vitesse du véhicule ? justifier
la réponse.
3.a. Quelle est la distance de freinage sur route
séche lorsque le conducteur roule à 90 km/h?
.b.
distance de freinage est elle
proportionnelle à la vitesse duvthicule Justifier
la réponse
3.a. Quelle est la distance
d'arrêt sur route séche
d'un véhicule roulant 390
km/h?
3.b. Pensez-vous que la
distance d'arrêt sur route
séche solt proportionnelle
a la vitesse du véhicule ? Expliquer votre réponse.
Exercice AB
Un menuisier dolt fabriquer une table en chêne
massif formée d'un plateau de 1,20 m sur 4 met
d'épaisseur 10 cm. Celle-ci est posée sur quatre
pleds de section carrée, de coté 10 cm et de
hauteur 0,85 m.
Sachant que la masse volumique du chêne qu'il
utilise est de 850 kg/m), comblen pèsera cette
table?
Indication : on pensero a convertir toutes les
grandeurs dans la même unite.
Rappel : la masse volumique est le rapport entre la
mosse d'un objet et son volume.
10
to
ID
TO
&
160 170
Vesa au kuoleek
Vacare
La cantado
recettes &
Distance de treinago lan m
100
10
13
20
10
40
100 170 140
Vites de vehicle ten km/N
Vacan
lumat
to the now
1.a. Quelle est la distance de réaction lorsque le
conducteur roule à 90 km/h?
Answers
1. Explain the relationship between a statistic and a parameter.
Answers
Answer:
A statistic is a characteristic of a sample, a portion of the target population. A parameter is a fixed, unknown numerical value, while the statistic is a known number and a variable which depends on the portion of the population.
Answer:
This is hw you do it
Step-by-step explanation:
A statistic and a parameter are very similar. They are both descriptions of groups, like “50% of dog owners prefer X Brand dog food.” The difference between a statistic and a parameter is that statistics describe a sample. A parameter describes an entire population
HELP PLEASE!!!
On the first day, it takes you 3 hours to drive 135 miles. The next day, it takes you 5 hours to drive 200 miles.
Answers
Answer:
Rate of 18 miles an hour
Step-by-step explanation:
Write an expression to represent the sum of three times the square of a number and -7 . In your expression what is the value of the constant?
Answers
Answer:
Step-by-step explanation:
3x^2-7
Determine whether each equation is true or false.
True
False
32 = 2 x 2 x 2
53 = 15
81 = 71
If answer i will make brainliest
Answers
Answer:
1=false 2= false and 3= false
Step-by-step explanation:
If the sum of the measures of ∠H and ∠J is 76∘ , what is the measure of ∠I ?
Answers
Answer: HKJ = 100
Step-by-step explanation
In this problem we need to use the property of a inscribed angle:
The inscribed angle is a point in the circle that has endpoints also in the circle. The value of the inscribed angle is half the value of the arc formed by the endpoints.
So, If the arc FJ is 84°, we have that the angle in point G isi 84/2 = 42°
Can someone please help me. WILL MARK U BRAINLIEST !!
Answers
Answer: I think b
Step-by-step explanation: If i get it wrong im terribly sorry plz forgive if it's wrong
D.
It intercepts y at f(0)=6, it has exponential growth, that is, function is continously increasing.
Hope this helps.
C.) 0,6 :3\5 = 4\9: ×
Answers
Answer:
There is no question. Please provide a question.
At a swim meet 20 medals were a warded. Four were gold metals 45% of the metals were silver the rest were bronze. What percent of the medals awarded were bronze
Answers
Answer:
35%
Step-by-step explanation:
To figure out the percentage of bronze medals, we must figure out the percentages of the gold and silver medals first.
We already know that 45% of the medals were silver.
We know that 4 of the 20 medals were gold.
4/20 as a percentage would be 20/100, or 20%.
So, 20% of the medals were gold, and 45% of them were silver.
45% + 20% = 65%
100% - 65% = 35%
So, 35% of the medals awarded were bronze.
I would appreciate brainliest, if not that's ok!
solve the simultaneous equations
Answers
I hope it helps you ❤️❤️❤️
translate: four less than a number is twelve
Answers
Answer:
16
Step-by-step explanation:16. 16-4 = 12.
FREE BRAINLIEST IF YOU ANSWER CORRECTLY!! (50pts)
Answers
Answer:
it is 10
Step-by-step explanation:
Answer:
ya its 10
Step-by-step explanation:
Add −2/3+ 2 3/8 . Write in simplest form. need help
Answers
Answer:
The anwser would be 53/24
Step-by-step explanation:
−2/3
+
23/8
=
−2/3
+
23/8
=
−16
24
+
69/24
=
−16+69
24
=
53/24
Answer:
[tex]1\frac{17}{24}[/tex]
Step-by-step explanation:
[tex]\frac{-2}{3} + 2\frac{3}{8}[/tex]
create the same denominator
3 * 8 = 24
- 16 + 57 = 41
add the denominator...
[tex]\frac{41}{24}[/tex]
You can also simply to
[tex]1\frac{17}{24}[/tex]
A rectangular parking lot has an area of 1,650 square yards. The length of the parking lot is 55 yards. What is the width of the parking lot, in yards?
Answers
Answer:
w = 30 yd
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityGeometry
Area of a Rectangle: A = lw
l is lengthw is widthStep-by-step explanation:
Step 1: Define
A = 1650 yd²
l = 55 yd
w = unknown
Step 2: Solve for w
Substitute in variables [Area of a Rectangle]: 1650 yd² = (55 yd)(w yd)[Division Property of Equality] Divide 55 yd on both sides: 30 yd = wRewrite: w = 30 ydOn a trip to Washington, D.C., you and your friend are standing next to the Washington Monument. Your friend wants to buy a guide book to find out how tall the Washington Monument is, but will use the money to buy a snack to share instead if you can figure it out. If you know your own height, what two additional measurements must you know to solve the problem?(1 point)
the length of the shadow cast by the Washington Monument and the length of the shadow cast by the Lincoln Memorial
the length of your shadow and the length of your friend’s shadow
the length of your shadow and the length of the shadow cast by the Washington Monument
the length of your friend’s shadow and the length of the shadow cast by the Washington Monument
If a 30-foot tree casts an 18-foot shadow, find the length of the shadow cast by a 24-foot tree. (1 point)
14.4 feet
432 feet
22.5 feet
40 feet
In △ABC, m∠A=42°, m∠B=50°, AB=4, and AC=3. In △XYZ, m∠X=42°, m∠Z=88°, XY=14, and YZ=9.5. Find the measures of BC¯¯¯¯¯¯¯¯ and XZ¯¯¯¯¯¯¯¯. Round to one decimal place.(1 point)
BC=2, XZ=7.1
BC=2, XZ=10.5
BC=2.7, XZ=7.1
BC=2.7, XZ=10.5
Answers
Answer:
1) the length of your shadow and the length of the shadow cast by the Washington Monument
2) 14.4 feet
3) BC=2.7, XZ=10.5
Step-by-step explanation:
just too the quiz
Answer:
1: The length of your shadow and the length of the shadow cast by the Washington Monument
2: 14.4
3: Yes, the triangles are similar.
/\ PSQ~/\RST
4: The solution for the value of x is incorrect because the proportion does use the ratios of corresponding sides
5:
Step-by-step explanation:
NEED NOW What is an equation of the line that passes through the points (-7,7) and (3, 7)
Answers
Answer:
y=7
Step-by-step explanation:
Answer:
10
explanation
The y doesn't change so all you have to do is just count the distance from -7 to 3 easy :)
Liz ran 4/5
km on Monday and 5/6 km on Tuesday. Select the true statement about the distance Liz ran.
Choose 1 answer
A:
Both fractions are almost 1 whole.
B:
One fraction is about 1/2 and the other is less than 1/2
Select the best estimate for the combined distance Liz ran Monday and Tuesday.
Choose 1 answer:
1/2 km
1 km
2 km
Answers
part b. the fraction combined is 49/30 which is 1 19/30 so 2km im goin with
divide rupee 560 between ramu and muni in the ratio of 3:2
Answers
Step-by-step explanation:
Let the divided amount between ramu and muni be 3x and 2x respectively.
Then
3x + 2x = 560
5x = 560
x = 560/ 5
x = 112
Amount received by Ramu
= 3 * 112 = 336
Amount received by muni
= 2 * 112 = 224
Hope it will help :)
What is the measure of angle z in this figure?
Enter your answer in the box.
z=
Answers
Answer:
56
Step-by-step explanation:
the whole angle has to
Answer:
z=56
y= 124
x=56
Step-by-step explanation:
White shapes and black shapes are used in a game.
Some of the shapes are circles.
All the other shapes are squares.
The ratio of the number of white shapes to the number of black shapes is 3 : 7
The ratio of the number of white circles to the number of white squares is 4 : 5
The ratio of the number of black circles to the number of black squares is 2 : 5
Work out what fraction of all the shapes are circles.
Answers
Answer:
Find the equivalent ratio for the total shapes:
Total Black Shapes : Total White Shapes = 5 : 11
Multiply by 2:
Total Black Shapes: Total White Shapes = 10 : 22
Step-by-step explanation:
A plane travels a distance of 21,000 km in a time of 3.2 hours.
What is its average speed rounded to the nearest whole number?
Answers
Hence average speed= 21 000/3.2 = 6562.5km/h
= 6563km/h (nearest whole number)
The table shows the coordinates of trapezoid ABCD and trapezoid A'B'C'D' after a transformation.
What are the coordinates of point C?
Answers
Answer:
3,4
Step-by-step explanation:
Help plz
Will mark brainliest
Answers
Answer:
I think it is B) 4 because 2÷2= 0 that leaves x. 8÷2= 4. that means x= 4.