Do your thing genius's.
Answer:
1. True.
2. True.
3. True.
4. False.
5. True.
the average of 5 numbers is 7. when one more number is added the average becomes 10. what number was added?
Answer:
13
Step-by-step explanation:
for example, Sum of 5 no. = 7×5=35
Sum of 8 no. = 8.5×8=68
Sum of added all three no. = 68 - 35 = 33
average of three new numbers = 33/3=11
The number 25 is added then the average becomes 10.
What is an average?The average is defined as the ratio of the sum of the data to the total numbers of the data.
Average = ( Sum of the numbers ) / ( number of the data )
Given that the average of 5 numbers is 7. when one more number is added the average becomes 10.
The number added is calculated as:-
Sum of the numbers = 5 x 7 = 35
Let x is the number added.
Sum of the numbers = 35 + x
We know that some of the numbers = 10 x 6
35 + x = 10 x 6
35 + x = 60
x = 60 - 35
x = 25
Hence, the number added is 25.
To know more about the average follow
https://brainly.com/question/8728504
#SPJ2
Work out the size of angle x
Answer:
70
Step-by-step explanation:
angles in a triangle= 180
79+35=110
180-110=70
ONLY A MASTERMIND CAN SOLVE
What numbers are:
NATA
u
nde
Blo
NEUE
9
We
Each color is a
different digit
eren
Answer:
The number printed in red color = 5
The number printed in silver color = 8
The number printed in blue color = 1
Step-by-step explanation:
P.S - The exact question -
Given - The diagram
To find - The number that represent Red, Silver and Blue color.
Proof -
Let the number printed in red color = r
Let the number printed in silver color = s
Let the number printed in blue color = b
Also,
Given that the equation is -
b s r
b s r
+ b s r
= r r r
Now,
We have to think of a number that if we add the last digit of the number gives the same last digit.
Bt inspection ,
the number would be 5
Because 5 + 5 + 5 = 15
Lat place of the equation is same
So,
The number printed on red color = 5
⇒r = 5
So, the equation becomes
b s 5
b s 5
+ b s 5
= 5 5 5
Now,
We have to think of a number whose last digit add up to 3 + 1 gives the last digit number 5 ( we add 1 because by adding 5 + 5 + 5 , we get 15 so we write the last digit 5 and 1 goes to the remainder and that remainder 1 will add up in the next number addition)(addition rule)
i.e.
s + s + s + 1 = number whose end digit is 5
By inspection,
The number would be 8
because 8 + 8 + 8 + 1 = 25
So,
we get
s = 8
So, the equation becomes
b 8 5
b 8 5
+ b 8 5
= 5 5 5
Now,
By same process , we will find the number of blue color
By inspection the number on blue color = 1
∴ we get
The number printed in red color = 5
The number printed in silver color = 8
The number printed in blue color = 1
and the equation is -
1 8 5
1 8 5
+ 1 8 5
= 5 5 5
Can someone help with this too
Step-by-step explanation:
13x - 26 °+ 5x +8° = 180° ( being co- interior angle)
13x + 5x - 26 °+ 8° = 180°
18x - 18 = 180°
18x = 180°- 18°
18x = 162°
x= 162° ÷ 18
x= 9°
hope it help
Mike and Julie receive $20,000 in gifts from friends and relatives for their wedding. They deposit the money into an account that pays 2.75% interest, compounded daily.
Will their money double within 10 years?
Will their money double within 15 years?
Answer:
A= P(1+r/n)^nt
P=20,000
r=2.75%/100=0.0275
n=365
t= 10 and 15
Will their money double within 10 years?
A=20,000(1+0.0275/365)^365t
=20,000(1.00007534)^365(10)
=26,330.340 --> $26,330.34
No
Will their money double within 15 years?
A=20,000(1+0.0275/365)^365t
=20,000(1.00007534)^365(15)
=30,211.321 --> $30,211.32
No
Step-by-step explanation:
On Wednesday 72% of the costumers who bought gas at a gas station made additional purchases. There were 259 costumers made additional purchase?
Answer:
360 approx
Step-by-step explanation:
Given data
We want to find the total number of customers that bought gas
Let the total number of customers be x
So
72% of x = 259
let us solve for x
72/100*x= 259
0.72*x=259
x= 259/0.72
x= 359.72
Hence the actual number of customers is 360 approx
Classify the polygon by its number of sides. State whether the polygon appears to be regular or not regular it’s has 8 sides
Answer:
octagon, regular
Step-by-step explanation:
it has eight sides and the side all measure the same amount
What is the length of the hypotenuse of the triangle when x=15?
Answer:
114.24°
Step-by-step explanation:
7(15)+6= 105
3(15)= 45, now we plug it in the formula, [tex]a^{2}+b^{2}=c^{2}[/tex]
[tex]105^{2}+45^{2} = 13050[/tex]
so now we square root it
[tex]\sqrt{13050}[/tex]= 114.24
Step-by-step explanation:
111^2 + 45^2 = 14346
then take the square root of 14346
which is 119.77
Plz help me I don’t understand this !! And it’s due today
Answer: it should be B
What is the area of these
Answer:
Step-by-step explanation:
Identify the vertex f(x) = x2 + 16
Calculate the distance between the points E=(-6,8) and N=(-1,5) in the coordinate plane. Give an exact answer (not a decimal approximation).
Answer:
6 units
Step-by-step explanation:
The formula for calculating the distance between two points is expressed as;
[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Given the coordinate points E=(-6,8) and N=(-1,5)
[tex]EN = \sqrt{(5-8)^2+(-1+6)^2}\\EN = \sqrt{(-3)^2+(5)^2}\\EN = \sqrt{9+25}\\EN = \sqrt{34}\\EN = 5.8\\EN \approx 6[/tex]
Hence the distance between the points is approximately 6 units
3x²+6x+8=6 find the discriminant
Answer:
12
Step-by-step explanation:
Answer: 12
Step-by-step explanation:
3x^2+6x+8=6
3x^2+6x+8-6=0
3x^2+6x+2=0
here a=3 ,b=6,c=2
Discriment=b^2-4ac
=(6)^2-4(3)(2)
=36-24
=12
Amira has two balls. One ball has a mass of 285 grams, and the other has a mass of 275 grams. What is the difference in the mass of the balls?
Answer:
10
Step-by-step explanation:
the fhdjjfjjfbkcdugfgu
find w to find the measure of the exterior angle
The angle that has nothing in it is going to be 54, leaving x to be 78
x=78 degrees
When we divide ——— by 8 gives a quotient of 75 and a remider of 3
Option 1 = 603
Option 2 = 600
Option 3 =605
Option 1 =603 is the answer
Answer:
option 1
Step-by-step explanation:
Cuz simply 603=75×8+3
Please help! I need help fast.
Answer:
240 cm^3
Step-by-step explanation:
The solid is composed by two rectangular parallelepipeds. To find the total volume we have to find the volume of the two solids and added up.
To find the volume of a parallelepiped we have to use this formula:
V = base surface x height
The area of rectangle is : base x width
So:
Area first rectangle: 4 x 6 = 24 cm^2
V = 24 x 7 = 168 cm^3
Area second rectangle: 4 x 2 = 8 cm^2
V = 8 x 9 = 72 cm^3
total volume = 168 + 72 = 240 cm^3
please help ! no links please
Find tan A.
A. tanA = 12/5
B. tanA = 5/12
C. tanA = 13/5
D. tanA = 5/13
Answer:
tanA=BC/AC
BC=20
AC=48
so,BC/AC=20/48=5/12
ABCD is a square with an area of 49 cm2, and BE = 4.95 cm. Point E is the midpoint of 2 diagonal lines crossed inside the square.
Answer:
I suppose we want to find the side length of the square.
We know that:
The area of the square is 49cm^2
The distance between one of the vertices of the square and the middle of the square is:
BE = 4.95cm
Now let's remember some things.
For a square of side length L, the area is:
A = L^2
and the diagonal length is:
D = √(2)*L
In this case, we know that half of the diagonal is equal to:
BE = 4.95 cm
Then the diagonal is:
D = 2*BE = 2*4.95cm = 9.9cm
And for the diagonal formula, we have:
D = 9.9cm = √(2)*L
Then the side length is:
L = 9.9cm/√(2) = 7cm
And if we check the area of this square, is:
A = L^2 = (7cm)^2 = 49cm^2
So it checks.
Then we can conclude that the sidelength of the square is 7cm, which means that:
AB = 7cm
BC = 7cm
CD = 7cm
DA = 7cm
Which event has a probability of zero or impossible to happen?
A Tossing a coin and landing on heads.
B Rolling an even number on a dice.
C Rolling a 7 on a 6 sided dice.
D The sun rising in the morning
Step-by-step explanation:
C. rolling a 7 on a 6 sided dice
Answer:
The answer is C) Rolling a 7 on a 6 sided dice.
Step-by-step explanation:
Answer choice (A) has a probability of 50%
Answer choice (B) has a probability of 50%
Answer choice (C) has a probability of 0% (There is not a 7 on a six sided dice)
Answer choice (D) has a probability of 100%
Hope this helps:)
How many different passwords can be made with two letters followed by four digits (with repeat
digits or letters allowed)?
Answer:
10,000 possible codes
Step-by-step explanation:
I need help pleaseeee
3 • 3
Answer:
9.
Step-by-step explanation:
The variable k represents a value in the set (-2,-4, -6, -8}.
Which value of k makes 4 (1.5 – k) - 10 = a true statement?
56
Answer:
Added thanks lol :)
Step-by-step explanation:
A line segment has an endpoint at (-1, -7). If the midpoint of the line segment is (3, -3), what
are the coordinates of the point at the other end of the line segment?
I NEED HELP PLZZ HELP ME
Answer:
A I think is the answer :)
ANSWER ASAP PLEASE T~T
You ask 196 of your classmates how they feel about the school year being made longer. Complete the two-way frequency table to show the results of the survey. Use pencil and paper. Combine the very unhappy and unhappy categories into one category called dislike and combine the happy and very happy categories into one category called like. Complete a new two-way frequency table.
Answer:
13, 11, 2, 25, 66, 5, 12, 25, 45
Step-by-step explanation:
Right to Left
Number of 6th graders that are very unhappy is 14
Number of 6th graders that are happy is 13
Number of 7th graders that are neutral is 12
Number of 7th graders that are happy is 30
Total number of 7th graders is 80
Number of 8th graders that are very unhappy is 20
Number of 8th graders that are very happy is 2
Number of unhappy students is 59
Number of very happy students is 25
What are the missing values?Total number of 7th graders = 196 - 50 - 66 = 80
The number of 7th graders that are neutral = 31 - 10 - 9 = 12
The number of 6th graders that are happy = 80 - 13 - 22 - 3 - 12 = 30
The number of 6th graders that are happy = 44 - 1 - 30 = 13
The number of 6th graders that are very unhappy = 66 - 10 - 10 - 19 - 13 = 14.
The number of 8th graders that are very unhappy = 37 - 3 - 14 = 20
Total number of unhappy students = 19 + 22 + 18 = 59
To learn more about addition, please check: https://brainly.com/question/349488
You and your friend decide to go to Red Robin to eat. You are both part of the rewards club and receive coupons in the mail. You have a coupon a coupon for 10% off the total bill. Your friend has a coupon for $5 off the total bill. Which coupon should you use to save the most money if the total bill was $29.90? *
A. the $5 off coupon
B. the 10% off coupon
C. either one
D. cannot be determined
Answer:
A. the $5 off coupon
Step-by-step explanation:
10% off would only be 2.99 off the bill making it 26.91 but the $5 would take off more
The coupon I would use to save the most amount of money on the total bill is my friend's coupon worth $5.
Which coupon should I use?Coupons reduce the price of an item. An item becomes cheaper after a coupon has been used. In order to determine the better coupon, calculate the price after each coupon has been used.
Coupon 1 : 10% x 29.9 = $3
Coupon 2 : 29.90 - $5 = $24.90
To learn more about how to calculate discounts, please check: https://brainly.com/question/26061308
Please solve this!!!!
Answer:
k=2
Step-by-step explanation:
-8k+6=-10k+10
-8k=-10k+4
2k=4
k=2
Answer: k=−0.2
Hope this helps!
