Answer:
Ratio (r) = 2
n = 7
Step-by-step explanation:
The formula for the sum of the nth term of a G.P is given as:
Sn = a(1-r^n)/(1-r)
Where n = Number of terms
r = Common ratio
The sum of the 1st nth term gp is 127.
Hence:
127 = 1(1-r^n)/(1-r)
The sum of the reciprocal is 127/64
The formula is inverted , hence:
Sn = 1/a(1-r^n)/(1-r)
127/64 = r^(1-n)(1-r^n)/(1-r)
Hence:
1/64 = r^(1-n)
r^(n-1) = 64
r^(n-1) = 2⁶
Hence:
r = 2
Solving for n
n - 1 = 6
n = 6 + 1
n = 7
Therefore:
r = 2
n = 7
pls help! giving thanks
Answer:
I would say C but also not sure
If 7 iced cupcakes cost $21, then how much would 5 iced cupcakes cost?
Answer:
$15 for 5 cupcakes
plss help i’ll give brainliest thank you!
Answer:
p
Step-by-step explanation:
Absolute value cancels negative so the greatest would be P.
have a nice day and i hope this helps! <3
The dot plot below represents how long it takes students in a 7th grade math class to
get to school every morning.
SOMEONE HELP PLZ GIVING OUT BRAINLEST
Answer:
40
Step-by-step explanation:
All you have to do is subtract the biggest number from the smallest in order to get your answer.
45 - 5 = 40. Hence, the answer is 40
Hope this helps! :)
The number of students in the class should be considered as the 40.
Calculation of the number of students in the class;= Largest commute time - smallest commute time
= 45 - 5
= 40
Here we basically deduct the smallest commute time from the largest commute time so that the no of student in the class should come.
Learn more about class here: https://brainly.com/question/17217914
Sam went to the store to buy some supplies for school. He bought a binder that cost $6.50 and packages of filler paper that cost $1.25 each. If Sam spent a total of $11.50, how many packages of filler paper did he buy? LET p = the number of packages of filler paper
Answer:
4 packages
Step-by-step explanation:
Hi,
1.25x + 6.50 = 11.50
1.25x = 5
x = 4
He bought 4 packages.
I hope this helps :)
What do the three red tiles in the model of the equation below represent?
=
1
-3
3
ОООО
-Зх
Step-by-step explanation:
There are 3 times of -x
which means the total of those x
=
[tex]3 \times ( - x) \\ = - 3x[/tex]
Find x and y
Show all the work
Can anyone help me with this math equation??
Answer:
0.4
Step-by-step explanation:
if u reduce that fraction it would be 4/10 which is 0.4 in decimal form
HELP asap now lol lorf
Answer:
[tex]22\ km[/tex]
Step-by-step explanation:
One is given the following information:
[tex]10\frac{1}{1}[/tex] km were covered on Thursday[tex]10\frac{1}{1}[/tex] km were covered on FridayOne is asked to find the total distance covered on both of these days. In order to do so, one must remember in a fraction, any number over (1) is equal to the numerator (number over the fraction bar). Thus one can form the following equation:
[tex](Thursday)+(Friday) = Total\ distance[/tex]
Substitute,
[tex](Thursday)+(Friday) = Total\ distance[/tex]
[tex](10\frac{1}{1})+(10\frac{1}{1}) = Total\ distance[/tex]
Simplify,
[tex](10\frac{1}{1})+(10\frac{1}{1}) = Total\ distance[/tex]
[tex](10+1)+(10+1) = Total\ distance[/tex]
[tex](11)+(11)=Total\ distance[/tex]
[tex]11+11=Total\ distance[/tex]
[tex]22=Total\ distance[/tex]
13 p
Roxanna invested $10,000 in an account that earns 8.5% interest that is
compounded monthly. Determine the amount of money in the account in
15 years. (Lesson 7-10b)
Answer:
$35,100
Step-by-step explanation:
Given data
Principal=$10000
Rate= 8.5%
Time = 15 years = 180 months
The expression for monthly compounded interest is
A=P(1+r/12)^t
substitute
A=10000(1+0.085/12)^180
A=10000(1+0.007)^180
A=10000(1.007)^180
A=10000*3.51
A=$35,100
Hence the balance is $35,100
Name an angle of
A) 40°
Answer:
acute angle
AB is 40°
and ED is also 40°
Step-by-step explanation:
Have a nice day!
That is an acute angle
plz help thank u so much.
Answer:
Q.1 area of triangle =1/2×base×height
area oftriangle=1/2×21 feet×16 feet
area of triangle =168feet²
Q.2 A=1/2×base×height
Q.3 area of triangle =1/2× base×height
35feet² =1/2×10feet× h
35 feet² =5 feet×h
35feet²/5 feet = h
7feet = h
Q.4 area of triangle =1/2×base×height
area of triangle =1/2×32×22
area of triangle =352 feet²
the present price of a car is 33750 every year the price decreased by 4% find the price of a car after 4 years
Answer: 28,665 currency units
Step-by-step explanation:
Find the value of the car after 4 years using the Future value formula:
= Amount * ( 1 + rate) ^ no. of years
= 33,750 * ( 1 + (-4%))⁴
= 33,750 * 0.84934656
= 28,665.45
= 28,665 currency units
one ticket costs $8. if you have $56, how many tickets can you buy?
please show work if it’s possible!!:)
Answer:
7
Step-by-step explanation:
because 56 divided by 8 = 7
or 7 x 8 = 56
hope this helps?
if its right can i have brainlist?
:')?
Answer:
You can buy 7 tickets
Step-by-step explanation:
56 devided by 8 is 7
I keep getting this wrong. I got f(x)=1/2^x
Answer:
Try that....
[tex]f(x) = \frac{1}{ {5}^{x} } [/tex]
Step-by-step explanation:
I hope that is useful for you :)
What are the solutions to 2(x – 7)2 = 32
A. x = 7+ 132
B.x = V65
C.x:3 and x = 11
D. X:-1 and x = 15
Answer:
C. x:3 and x = 11
Can anyone please help me with this math equation?
Answer:
1/5
Step-by-step explanation:
umm what's (3/5)/3
1/5
The scatter plot shows the number of new magazine subscriptions compared with the percentage of advertisements in the magazines
A. The number of new subscribers to the new magazines will increase
B. The number of new subscribers to the magazines will decrease
C. The advertising revenue will increase the profit of the magazine
D. There is no association in the data to make a prediction
Answer:
The answer is B!
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
[tex] 25x { }^{2} + (5x - 3)(2x + 7) - 9[/tex]
Step-by-step explanation:
[tex]5x - 3 \times 7x + 10[/tex]
Answer:
35x² + 29x - 30
Step-by-step explanation:
Given
25x² + (5x - 3)(2x + 7) - 9 ← expand factors using FOIL
= 25x² + 10x² + 29x - 21 - 9 ← collect like terms
= 35x² + 29x - 30
what is the volume of this rectangular prism
Answer: 56
Step-by-step explanation: 7 * 2 * 4 = 56
Answer:
V = 56
Step-by-step explanation:
Rectangle prism Volume:
V = whl
Given:
w = 4
h = 2
l = 7
Work:
V = whl
V = (4)(2)(7)
V = 56
round 33.885 to the nearest 100th
Answer:
33.89
Step-by-step explanation:
How to Calculate Rounding to the Nearest 100th?
If the digit after hundredth is greater than or equal to 5, add 1 to hundredth. Else remove the digit. Example
124.586
The third digit of right of decimal point is 6
The second digit after decimal point is 8 which is greater than 5
So add 1 to 8
Result = 124.59
Answer:
it's 33.89 hope it helps
A baker made 6 pounds of dough. He used 8 9 of the dough to make sandwich rolls. How much of the dough is left over?
Answer:
2/3 pound of dough is left
Step-by-step explanation:
Amount of dough available = 6 pounds
The amount used in making sandwich rolls = 8/9 of the total amount
= [tex]\frac{8}{9} \times6 = 5\frac{1}{3} pounds[/tex]
Therefore, amount of dough left over [tex]= 6- 5\frac{1}{3} = \frac{2}{3} \\[/tex]
Hence, 2/3 pounds of dough is left
2. A printing machine makes 240 books
in 30 hours. Written as a unit rate,
what is the speed at which the printing
machine makes books?
Answer quick plzzz
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 8 books/ hour
Explanation:
240 / 30 = 8 books/ hour
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
8 books
Step-by-step explanation:
durjddndndnfnenfdndndnfn
hope this helps!
The length of the base of an isosceles triangle is x. The length of a leg is 4x - 4. The perimeter of the triangle is 118. Find x.
Answer:
x = 14
Step-by-step explanation:
4x - 4 + 4x - 4 + x = 118
9x - 8 = 118
9x = 126
x = 14
Find an expression which represents the sum of (-8x+7y)(−8x+7y) and (2x-2y)(2x−2y) in simplest terms.
Answer:
Step-by-step explanation:
(-8x+7y)(-8x+7y)+(2x-2y)(2x-2y)
=64x²-56xy-56xy+49y²+(4x²-4xy-4xy+4y²)
=64x²-112xy+49y²+4x²-8xy+4y²
=68x²-120xy+53y²
(-7,-5) lies in which of the following quadrants [ ]
a) Q1 b) Q2 C) Q3 d) Q4
Answer:
C) Q3
Step-by-step explanation:
Starting from the origin, go along the x-axis in a negative direction (left) and along the y-axis in a negative direction (down).
A, B, and C are polynomials, where A = n, B = 2n + 6, and C = n2 – 1. What is AB – C in simplest form?
–n2 + 3n + 5
n2 + 6n + 1
2n2 + 6n – 1
3n2 + 5
Answer:
n^2 + 6n + 1
Step-by-step explanation:
Firstly, we have to evaluate AB
What we have to do is to multiply A and B
We have this as;
n(2n + 6) = 2n^2 + 6n
Now, we have to subtract the value of C from here and that is;
(2n^2 + 6n) - (n^2 - 1)
2n^2 + 6n - n^2 + 1
= 2n^2 -n^2 + 6n + 1
= n^2 + 6n + 1
Answer:
B
Step-by-step explanation:
para envasar 600kg de mole en pasta una productora de alimentos utiliza 140 envases ¿cuantos envases se necesitará para 950kg de mole?
Answer:
link respuesta - https://answer-helper.com/mathematics/question21964709
Step-by-step explanation:
Anybody know this. Need help please!!!!
Solve for x
2 (x + 1) = -200 x= 66
2x + (-3) = = (-23) x=
X - 3 = (-9) x=
(-3x) - 5 = 16 x=
-4 (y - 2) = 12 x=
4x = (-28) x=
2x + 9 = (-15) x=
X + 5 = 18
3 (x+ 5) = 18
3x + 5 = 18
2 (x + 5) = 16
3 (y + 200) = 3000
20.8 = 4 (z + 1.1)
3 (x + 4.5) = 36
9 = 3 (x + 2)
2x + 16 = 50
14 = 2 (x + 3)
5x + 2 = 17
Answer:
---------
Step-by-step explanation:
x-3= -9
x= -9/ 3
x= -3
( -3x)-5 =16
-3x = 16+5
×= 21/-3
x = -7