As per linear equation, the average of the student is 82.2.
The mean is 83.75.
What is a linear equation?A linear equation is an equation that contains one or multiple variable with the highest power of the variable is one.
The student got test average of 80, his quiz average of 72, homework of 90, and classwork of 93.
Test is worth of 30%.
Therefore, the weightage of test is
= 80 × 30%
= 24
Quiz is worth of 30%.
Therefore, the weightage of quiz is
= 72 × 30%
= 21.6
Homework is worth of 20%.
Therefore, the weightage of homework is
= 90 × 20%
= 18
Classwork is worth of 20%.
Therefore, the weightage of classwork is
= 93 × 20%
= 18.6
Therefore, the average of the student is
= (24 + 21.6 + 18 + 18.6)
= 82.2
Now, the mean is
= (80 + 72 + 90 + 93)/4
= 83.75
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Find the solutions to x^2= 18.
Answer: B
Step-by-step explanation: You are correct!
HELP ME AGAIN PLEASE I BEG
Answer:
Both of your answers are correct
Step-by-step explanation:
Answer:
d
e
Step-by-step explanation:
2x ≤ 5x - 15
step 1 subtract 5x from each side
2x - 5x = -3x
5x - 5x cancels out
we now have -3x ≤ -15
step 2 divide each side by -3
-3x / -3 = x
-15 / -3 = 5
IMPORTANT NOTE ( when you divide by a negative number you must flip the sign )
We would be left with x ≥ 5
now let's Plug in 10
2(10) ≤ 5(10) - 15
2(10) = 20
20 ≤ 5(10) - 15
5(10) = 50
20 ≤ 50 - 15
50 - 15 = 35
20 ≤ 35 ✓
[Q] Mike and Jeanie played 38 games of checkers. Mike won 6 more games than Jeanie. To find out how many games Jeanie won a student used this equation.
M + J = 38
In this equation: M = number of games Mike won and J = number of games Jeanie won Which other equation would help the student to solve this problem?
(A) 38 - 6 = J
(B) M - J = 6
(C) 38 + 6 = J
(D) J - M = 6
(E) M + J = 6
Answer:
(B) M - J = 6
Step-by-step explanation:
Here we have the variables:
M = number of games that Mike won.
J = number of games that Jeanie won.
And we know that there is a total of 38 games played, then if a game can not end in a draw, we have the equation:
M + J = 38
Now we want to find the other equation needed to solve this problem:
We also know that Mike won 6 more games than Jeanie, this is written as:
M = J + 6
We can subtract J in both sides to get:
M - J = 6
This is the equation from option B, so we can conclude that the correct option is B.
does 32, 57, 65 form a right triangle?
Answer:
No
Step-by-step explanation:
In order to form a right triangle, you would need one of the angles to be 90 degrees. Plus all the angles don't equal 180 degrees (the angles of a triangle should add up to 180)
How are differences between the sample mean and the population mean explained when the result isn't statistically significant?
Answer and explanation:
The standard error is used to measure the difference between the sample mean and the population mean. It uses standard deviation to measure the level of deviation of the sample mean from the population mean. In other words, the accuracy of the sample mean by way of representing the mean of the population is measured using the standard error. If there is significant difference then standard error is bigger usually non-zero while it is less significant with smaller standard error.
Dennis walks his dog 2 times a day. Each walk is 1 mile in length. How
far will he have walked his dog in a week?
solve for q tysm:)))
Solve for q
-----------------
[tex](8q-5)^o+81=180^o[/tex]
[tex]8q-5+81=180[/tex]
[tex]8q+76=180[/tex]
[tex]8q=180-76[/tex]
[tex]8y=104[/tex]
[tex]q=13[/tex]
---------------
Answer[tex]q=13[/tex]-----------------------hope it helps...have a great day!!18x - 432 - 18x - 6x² +144
Answer:
-6x^2-288
Step-by-step explanation:
18x - 432 - 18x - 6x² +144
Combine like terms
-6x^2+18x-18x-432+144
-6x^2-288
Which of the following theorems verifies that XYZ - UWV
A. HL
B. AA
C. LL
D. HA
Given:
The figure of two triangle XYZ and UWV.
To find:
The theorem that is used to verify [tex]\Delta XYZ\sim \Delta UWV[/tex].
Solution:
In triangle XYZ,
[tex]m\angle X+m\angle Y+m\angle Z=180^\circ[/tex] (Angle sum property)
[tex]70^\circ+90^\circ+m\angle Z=180^\circ[/tex]
[tex]160^\circ+m\angle Z=180^\circ[/tex]
[tex]m\angle Z=180^\circ-160^\circ[/tex]
[tex]m\angle Z=20^\circ[/tex]
In triangle XYZ and triangle UWV,
[tex]m\angle Y\cong m\angle W[/tex] (Right angles)
[tex]m\angle Z\cong m\angle V[/tex] (Equal measures)
Two angles of one triangle are congruent to corresponding angles of another triangle. So, the triangles are similar by AA property of similarity.
[tex]\Delta XYZ\sim \Delta UWV[/tex] (AA similarity theorem)
Therefore, the correct option is B.
A town has a population of 5600 in 2014. If the towns population increases at an annual rate of 1.8%, determine the towns population in 2020. *
Answer:
In 2020 the population will be 6,233.
Step-by-step explanation:
Giving the following information:
Present value (PV)= 5,600
Growth rate (g)= 1.8%
Number of periods= 6 years
To calculate the population in 2020, we need to use the following formula:
FV= PV*(1 + g)^n
FV= 5,600*(1.018^6)
FV= 6,232.67 = 6,233
In 2020 the population will be 6,233.
The First Super Bowl was in what Year-
A. 1957
B. 1967
C. 1969
D. 2000
Answer:
B, 1967.
Step-by-step explanation:
Hope this helps.
Andrew is two years older than Beatrice, and Chris is three years younger than Beatrice. The product of Andrew's age and Chris' age is 66. How old is Beatrice?
Answer:
9
Step-by-step explanation:
A = B + 2
C = B - 3
A x C = 66
A = Andrew
C = Chris
B = Beatrice
Multiply A and c together
(B + 2) x (b - 3)
b^2 - 3b + 2b - 6
b^2 -b - 6 = 66
b^2 - b - 72 = 0
factors of -72b^2 that add up to - b are -9b + 8b
b^2 + 8b -9b - 72
b (b + 8) -9(b + 8)
b = 9 or - 8
b = 9
8/3+(-9/4)=? ......................
Answer:
5/12
Step-by-step explanation:
make common denominater which is twelve 8 becomes 24 -9 becomes -21
Answer:
5/12
because we first need to find the equal denominator
4. A rental car costs a one time fee of $180 and then an additional $65 for each day it is
rented. If the Neddles family's total bill was $520, how many days did they rent the car?
Answer:
5.23 =d
Step-by-step explanation:
cost = fee + daily charge*days
520 = 180+ 65d
Subtract 180
520 -180 = 180+65f-180
340 = 65d
Divide by 65
340/65 = 65d/65
5.23 =d
Classify the following triangle. Check all that apply
Step-by-step explanation:
it's a right angled triangle
it's also a scalene triangle because not all sides are equal
calcula la longitud de la variable "x"
Answer:
La longitud de [tex]x[/tex] es [tex]5\sqrt{2}[/tex] unidades.
Step-by-step explanation:
La figura es un cuadrado atravesado por una diagonal, significando que existen dos triángulos rectángulos, cuyos ángulos interiores son 45°, 45° y 90°, respectivamente. Por Geometría Euclideana, tenemos que la longitud de la hipotenusa es igual a [tex]\sqrt{2}[/tex] veces la longitud de cualquiera de sus catetos:
[tex]x = \frac{10}{\sqrt{2}}[/tex]
[tex]x = 5\sqrt{2}[/tex]
La longitud de [tex]x[/tex] es [tex]5\sqrt{2}[/tex] unidades.
Can someone help me pls
Answer:
Choice C (the third option)
Step-by-step explanation:
[tex](a+b)(a+b) = a^2+2ab+b^2[/tex]
Choice C is incorrect because it is missing the [tex]2ab[/tex]. Hope this helped!
PLEASE I REALLY NEED HELP I ONLY HAVE AN HOUR LEFT TO FIINISH THIS What is the relationship or pattern you see between the month and the daylight hours?
Answer:
The relationship or pattern between the month and the daylight hours is that the winter months tend to have fewer daylight hours while the summer months tend to have more daylight hours.
I reallllyy neeeeedd helpppp dont be capping put the right answer
I believe it's A, C and D.
An angle measures 52° less than the measure of its supplementary angle. What is the measure of each angle?
Answer:
64º and 116º
Step-by-step explanation:
x + (x - 52) = 1080
2x - 52 = 180
2x = 232
x = 116º
x - 52 = 64º
8. An car can hold 8 1/4 gallons of fuel. It contains 4 5/6 gallons of fuel. How
much more fuel is needed to fill the car?
Answer:
3 5/12
Step-by-step explanation:
Answer:
41/12 gallons
= 3 5/12 gallons
Step-by-step explanation:
Since it can hold 8 1/4 gallons and currently has 4 5/6 gallons, you subtract.
You need to get the common denominator to subtract cleanly so we can turn the fractions into improper fractions.
8 1/4 = 33/4 because 8 is equal to 8 full 4/4ths so multiply 8 by 4 and add 1 for the remaining 1/4.
Then 4 5/6 becomes 29/6 with the same concept earlier.
So we can change the denominator to 12 on both fractions (33/4 and 29/6) so we can subtract.
33/4 becomes 99/12 because they are still equivalent, it's just that you multiplied the top and bottom by the same number.
29/6 becomes 58/12 because we multiplied the fraction by 2/2.
Those two new fractions stated previously are the same as the original because we multiplied them by 1/1, because 3/3 and 2/2 is still equal to 1/1, and the new fractions can be simplified down to the original.
Since we have 99/12 and 58/12, we can subtract cleanly into
99 - 58 = 41
So the answer is 41/12
The faces on a number cube are labled 1,2,2,3,4, and 5the number cube is rolled 114 times how many times would you expect the number 2 to apper
Given:
The faces on a number cube are labeled 1,2,2,3,4, and 5.
The number cube is rolled 114 times.
To find:
How many times would you expect the number 2 to appear?
Solution:
We have,
Total outcomes = 1,2,2,3,4, and 5.
Number of total outcomes = 6
Favorable outcomes = 2 and 2
Number of favorable outcomes = 2
The probability of getting 2 is:
[tex]P(2)=\dfrac{\text{Number of favorable outcomes}}{\text{Number of total outcomes}}[/tex]
[tex]P(2)=\dfrac{2}{6}[/tex]
[tex]P(2)=\dfrac{1}{3}[/tex]
Now, the expected number of times when 2 to appear is:
[tex]E(x)=114\times P(2)[/tex]
[tex]E(x)=114\times \dfrac{1}{3}[/tex]
[tex]E(x)=38[/tex]
Therefore, the expected number of times is 38.
If U = {1, 3, 5, 7, 9, 11, 13}, then which of the following are subsets of U.
A = {0}
B = {2, 4}
C = {1, 9, 5, 13}
D = {2, 3, 4, 5}
Answer:
C
Step-by-step explanation:
It is C because members in the set C can be found in the universal set (U)
HELP FAST! well give Brainliest
Mark is buying wings and hot dogs for a party. One package of wings (2) costs $5 and hot dogs (y) costs $3 per pound. He must spend less than $40. Write an inequality to represent the cost of Mark's food for the party.
Answer:
2(5)+3y<40
yes that what I know
PLEASE HELP WILL GIVE brAINLIEST
Santino is renting a canoe from a local shop that charges a $10 fee, plus an hourly rate of $7.50. For how long can Santino rent a canoe if he pays a total of $70?
write the sum of MC and CD in Hindu Arabic
Answer:
CD = 400. CD = − C (100) + D (500) = 400. 1 = I 5 = V 10 = X 100 = C 500 = D 1,000 = M.
MC is writen as 1100 in Arabic numerals.
Step-by-step explanation:
Can someone help
Me solve the rest of this please
Answer:
Step-by-step explanation:
PLEASE HELP ASAP !! DUE TONIGHT
EXPLANATION = BRAINLIEST
Question 6 options:
A sphere with a volume of 1200 cm³ is dilated by a factor of 3/5.
The volume of the dilated image is ___ cubic centimeters.
Express your answer to the nearest whole unit.
Given:
Volume of sphere = 1200 cm³
The sphere is dilated by a factor of [tex]\dfrac{3}{5}[/tex].
To find:
The volume of the dilated image.
Solution:
If two figures are similar then their volumes are proportional to cube of their corresponding sides.
We know that all sphere are similar to each other.
The sphere is dilated by a factor of [tex]\dfrac{3}{5}[/tex]. It means the ratio of new figure to original figure is
Let [tex]V_1[/tex] be the volume of original figure and [tex]V_2[/tex] be the volume of dilated figure.
[tex]\dfrac{V_2}{V_1}=\left(k\right)^3[/tex]
Where, k is the scale factor.
[tex]\dfrac{V_2}{1200}=\left(\dfrac{3}{5}\right)^3[/tex]
[tex]\dfrac{V_2}{1200}=\dfrac{27}{125}[/tex]
Multiply both sides by 1200.
[tex]V_2=\dfrac{27}{125}\times 1200[/tex]
[tex]V_2=259.2[/tex]
[tex]V_2\approx 259[/tex]
Therefore, the volume of the dilated image is 259 cubic centimetres.
the difference of the place values of the digit 7 in 73,789
Answer:
tens of thousand vs hundred
Step-by-step explanation:
James is using cement to make a new sidewalk and new steps.
Part A
He will make a new rectangular sidewalk that is 8 feet long, 4 feet wide, and 0.25 foot thick.
What is the volume, in cubic feet, of the cement used to make the sidewalk? Show or explain all of the steps you used to determine your answer.
Part B
This diagram shows James’s design for the steps. The height of each step will be 6 inches. All angles in the diagram are right angles.
I need it now please!
The volume, of the cement used to make the sidewalk is 8 ft³
What is volume?Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.
Given that, James is using cement to make a new sidewalk and new steps,
He will make a new rectangular sidewalk that is 8 feet long, 4 feet wide, and 0.25 foot thick.
Volume = length x width x height
Volume = 8 x 4 x 0.25 = 8 ft³
Hence, the volume, of the cement used to make the sidewalk is 8 ft³
Learn more about volumes, click;
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