Answer :
n = 4
Step-by-step explanation:
5n + 34 = -2(1-7n)
first distribute
5n + 34 = -2(1) -2(-7n)
5n + 34 = -2+14n
-5n
+2
then get all of n to the same side
36 = 9n
isolate the variable
36/9 = 9n/9
4 = n
Answer:
n=4
Step-by-step explanation:
Hi there!
We are given the following equation:
5n + 34 = -2(1-7n)
And we want to solve it for n
To do that, we want to isolate n (also written as 1n) on on side by itself.
In this equation, on the right side, we have -2(1-7n), which is in the way. We'll need to open it up.
In order to open up the parenthesis, we'll need to do the distributive property, where we will multiply -2 to both 1 and -7n, then add them together.
-2(1-7n)=-2+14n
That's for the right side.
The equation now looks like this:
5n + 34 = -2 + 14n
Remember that we will be trying to isolate n on one side
Subtract 5n from both sides to remove it from the left side:
5n + 34 = -2 + 14n
-5n -5n
__________________
34 = -2 + 9n
Add 2 to both sides to remove it from the right side:
34 = -2 + 9n
+2 +2
______________
36 = 9n
Now, we have numbers on one side and variables on the other, but we're not done yet, since remember; we want just n (or 1n), not 9n. We need to divide both sides by a number that will result in 1n
If we divide a number by itself, then the result is 1
So we should divide both sides by 9
4 = 1n, also written as 4=n , or n=4
Hope this helps!
Sally is 3 years older than Jill was 5 years ago. Write an algebraic expression for both of their ages. If Jill is 10, how old is Sally?
Answer: 13 (and Sally will always be 3 years older than Jill)
Step-by-step explanation:
Let S and J stand for Sally and Jill's ages. We are told:
(S-5) = (J-5)+3 [Sally is 3 years older than Jill was 5 years ago] The 5 years ago is the reason for the (S-5) and (J-5) expressions.If Jill is 10, how old is Sally?
(S-5) = (J-5)+3
(S-5) = (10-5)+3
S-5 = 8
S = 13
We actually don't really need an equation for solving this, other than the question asks us to write one. It doesn't matter how many years later, since Sally is 3 years older, she will always remain 3 years older, if we ignore the likelihood that the statement doesn't hold true for the period between their actual birthdays.
You spin the spinner and flip a coin. Find the probability of the compound event.
A spinner is divided into 5 equal regions. The sections are labeled 1, 2, 3, 4, and 5.
The probability of spinning a prime number and not flipping heads is
.
3/10
2, 3, and 4 are prime numbers. Those are three numbers worth. The maximum number on the spinner is 5 so you multiply 5 by 2 and get 10. Again, 3 numbers are prime numbers. So from there you add 3 and 10 as a fraction and get 3/10
-papichulo is back
−53+(+8)=
what is the answer
Answer:
(-45)
Step-by-step explanation:
Hey there,
Before solving this you have to know that,
(-) × (-) = (+)
(+) × (+) = (+)
(-) × (+) = (-)
Let us solve now.
-53 +(+8)
-53+8
= (-45)
Hope this helps you.
Let me know if you have any other questions :-)
If a car travels 32.5 miles in 1.5 hours, than how long will it take to travel 26 miles at this speed?
Answer:
Is this for math?
Step-by-step explanation:
What is the LCM for 12 and 4
Answer:
12
Step-by-step explanation:
8xy + 14x + 4x - 2xy + 6y
Answer:
6xy + 18x + 6y
Hope this helps!
Answer:
i dont know the answer to this
Step-by-step explanation:
Because i just dont
Please answer this question
Answer:
C - The relationship represents a function because each input gives one unique output.
Step-by-step explanation:
To see if it is a function we can do the line test where we have a vertical line and "drag" it along the line. As long as it only hits the line once in every situation it is a function! We can see this passes and therefore the answer is c.
(why is it not d? you can have a non-linear line, but still have a function)
please help me because im doing my math right but i cant get the answer
Write
2^
3/2
in surd form.
Answer:
[tex] {2}^{ \frac{3}{2} } = \sqrt[3]{ {2}^{2} }\\= \sqrt[3]{ {4}}[/tex]
The surd form is : [tex](\sqrt{2} )^3[/tex]
[tex](\sqrt{2} )^3=\sqrt{2}. \sqrt{2}. \sqrt{2}[/tex]
It gives in the approximate value is : 2.80
What is surd form?Surds are the square roots (√) of numbers that cannot be simplified into a whole or rational number. It cannot be accurately represented in a fraction. In other words, a surd is a root of the whole number that has an irrational value. Consider an example, √2 ≈ 1.414213. It is more accurate if we leave it as a surd √2.
We have from the question is:
Write in the surd form:
=> [tex]2^\frac{3}{2}[/tex]
Now, According to the definition:
Write like this:
[tex]2^\frac{3}{2}=((\sqrt{2} )^2)^\frac{3}{2}[/tex]
Cancel out the:
2 × 3/2 = 3
So, [tex](\sqrt{2} )^3=\sqrt{2}. \sqrt{2}. \sqrt{2}[/tex]
It gives in the approximate value is : 2.80
But, The surd form is : [tex](\sqrt{2} )^3[/tex]
Learn more about surd form at:
https://brainly.com/question/11181869
#SPJ3
8+(2+6)=(8+2)+6 what property justifies that statement
Answer:
Associative Property of Addition
Step-by-step explanation:
According to the Associative Property of Addition, when three real numbers are added, it makes no difference which two are added first.
(a + b) + c = a + (b + c)
Therefore, 8 + (2 + 6) = (8 + 2) + 6 is an example of the Associative Property of Addition.
Please mark my answer as the Brainliest, if you find my explanation helpful :)
Titus took 30 minutes to walk 2 miles at a constant
rate. Let d represent the distance Titus walks, in miles, after t minutes. Here are your constants of proportionality from the previous screen: 15 and 15. Write two different equations to represent the
relationship between d and t.
If Titus walked 7.5 miles at this same rate, how many
minutes would it take?
HEEEEEELLLLLPPPPP
Constant of proportionaility #1 2/30 = 1/15
Constant of proportionaility #2 d/t
1 distance divided by time
Relationship: equality
Reason: they all represent velocity and they tell us that velocity is constant.
-------------------------------------------------------
15 and 1/15 (answer)
Steps:
Given
Time (t) = 30 minutes
distance (d) = 2 miles
To determine the first constant of proportionality
Let time be directly proportional to distance.
t = kd
Where k is the constant of proportionality
Make k the subject
k = t/d
Substitute values for t and d
k = 30/2
k = 15
To determine the second,
Let distance be directly proportional to time.
d = kt
Make k the subject
k = d/t
Substitute values for d and t
k = 2/30
k = 1/15
Hence, the constant of proportionality are
15 and 1/15
Which function passes through the points (2,3) and (4,4)
Answer:
y = 1/2x + 2
Step-by-step explanation:
First, we find the slope of the line by subtracting the x- and y-values of each point, and dividing that:
(4-3)/(4-2) = 1/2
So, our slope is 1/2. Then, we insert this into a y = mx + b equation using one of our points to find the y-intercept (b). I used the point (2, 3):
3 = 1/2(2) + b
3 = 1 + b
b = 2
Now that we have our slope and the y-intercept, we can create a function: y = 1/2x + 2.
Answer:
C, Because if you draw a graph, the line y=1/2x+2 lines up with (2,3) and (4,4),
PLEASE HELPPPPPP EASY
Write down in terms of n, an expression for the nth term
of the following sequence
-8 -15 -22 -29 -36
Answer:
[tex]a_{n}[/tex] = - 7n - 1
Step-by-step explanation:
There is a common difference between consecutive terms , that is
- 15 - (- 8) = - 22 - (- 15) = - 29 - (- 22) = - 36 - (- 29) = - 7
This indicates the sequence is arithmetic with nth term
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 8 and d = - 7 , then
[tex]a_{n}[/tex] = - 8 - 7(n - 1) = - 8 - 7n + 7 = - 7n - 1
What is the quotient
2mºnº
4mºn
in simplest form? Assume m+0,1 +0.
man
2
m7n
2
6mln
Ο Ο.
8mn
Step-by-step explanation:
the first option : -(m¹²n⁶)/2
why ?
we can go through factor by factor of the multiplication/fraction.
2/-4 = -1/2
m⁹/m^-3 = m^(9 - -3) = m¹²
n⁴/n^‐2 = n^(4 ‐ -2) = n⁶
when we put all 3 factors back together, we get the mentioned result.
What happens to the mean of the data set shown below if the number 3 is added to the data set? A. The mean increases by 2. B. The mean does not change. C. The mean decreases by 0.25. D. The mean increases by 1.
Answer: B : Mean Does Not change
Step-by-step explanation:
Answer: The answer is C
Step-by-step explanation:
I took the quiz and put B and got it wrong so don't trust his answer
I need help writing these in numerical form someone help please.
Answer:
they're all in order plz give brainliest
Step-by-step explanation:
2n+4=12
5n-2=8
5+3n=5
4n+7=11
2n-1=9
7n-2=54
2n+8=32
3n+7=34
2n+4=16
5n-17=53
3n-7=14
12+2n=44
9n+2=29
3n-15=36
11+5n=66
7n-9=82
3n-11=34
Please help me solve this ASAP
Answer:
$21
Step-by-step explanation:
Let the amount Lori bought the shirt and the hat be $x, if she bought them at half off sale, the initial price of both item will be 2 × $x
If she spent $21 on both items, the initial price will have been 2 x $21 = $42 where x is $21
Original price of the hat and shirt is therefore $42. Since both are on half off sale, the initial price is the hat will be $42/2 = $21
Find the number a and b with ab+ba is số chính phương
Answer:
(2,9) , (3,8) , (4,7) , (5,6)
Step-by-step explanation:
ab+ba = 10a+b+10b+a = 11a+11b = 11(a+b)
if a+b = 11 then ab+ba = 11²
(a,b) or (b,a) : (2,9) , (3,8) , (4,7) , (5,6)
check: 29+92 = 121 = 11²
56+65 = 121 = 11²
Help asap will give brainliest!!!!
Answer:
C
Step-by-step explanation:
ley y = f(x) and rearrange making x the subject
y = [tex]\frac{1}{x+5}[/tex] - 1 ( add 1 to both sides )
y + 1 = [tex]\frac{1}{x+5}[/tex] ( multiply both sides by (x + 5)
(y + 1)(x + 5) = 1 ← expand factors using FOIL
xy + 5y + x + 5 = 1 , that is
xy + x + 5y + 5 = 1 ( factor first/second and third/fourth terms on left side )
x(y + 1) + 5(y + 1) = 1 ← factor out (y + 1) from each term on left side
(y + 1)(x + 5) = 1 ( divide both sides by (y + 1) )
x + 5 = [tex]\frac{1}{y+1}[/tex] ( subtract 5 from both sides )
x = [tex]\frac{1}{y+1}[/tex] - 5
Change y back into terms of x with x = [tex]f^{-1}[/tex] (x) , then
[tex]f^{-1}[/tex] (x) = [tex]\frac{1}{x+1}[/tex] - 5 where x ≠ - 1
The edges on Zachary's snowboard are chlpped and dented from riding over rocks, so Zachary wants to buy a new one. He can't afford the board he wants, so he opens a hot chocolate stand near his house. Zachary figures out how many cups of hot chocolate he must sell to have enough money for the snowboard. One cold, snowy Saturday, Zachary sells 43 cups of hot chocolate. Now, he needs to sell 47 more cups to buy the snowboard. Which equation can you use to find the total number of cups c Zachary must sell to buy the snowboard?
Answer:
c-43=47
Step-by-step explanation:
Well this is kinda obvious.
He already sold 43 cups of hot choclate and he needed 47 more.
So the total amount of cups is (c) so we can make an equation like this
c-43 (since theres total which is unknown so ”c” and then Theres the already sold 43 cups).
c-43=47 (the 47 is the amount he needs to sell)
So final equation to determine total cups needed
c-43=47
Can someone please help me out with this. Pls don't just say A, B, C, or D, like i need explanation pls. I am begging you, I cannot fail this
Answer:
-2, 1, and 3 only
Step-by-step explanation:
Because if You look at the graph..
Ms. Adams surveyed 899 students to start a club for coding and technology. Thirty-two students responded to the survey. What is the percent of students that responded?
Answer:
3.559510567%
Step-by-step explanation:
32 / 899 = 0.03559510567
0.03559510567 = 3.559510567%
Which ordered pairs in the form (x, y) are solutions to the equation
7x−5y=28?
Select each correct answer.
(−6, −14)
(−1, −7)
(7, 9)
(4, 10)
Answer:
(-6, -14), (-1,-7)
Step-by-step explanation:
The equation is a plug and play just plug in the X and Y values of your original equation.
Can someone please help me?
Answer:
x ≈ 30.1°
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos x = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{HJ}{GJ}[/tex] = [tex]\frac{45}{52}[/tex] , then
x = [tex]cos^{-1}[/tex] ( [tex]\frac{45}{52}[/tex] ) ≈ 30.1° ( to the nearest tenth )
Answer:
We are going to use Cosine [tex]\frac{adjacent}{Hypotenuse}[/tex]
[tex]\frac{45}{52}[/tex]
Now, we use the inverse of cosine
[tex]cos^{-1} (45/52) = 30.1[/tex] (rounded to the nearest tenth of a degree)
your answer is x = 30.1 degrees.
Step-by-step explanation:
find the difference and round to the nearest hundreths if necessary : 6.04 / 2.4
Answer:
2.52
Step-by-step explanation:
Divide this polynomial:)
Answer:
The answer is 3x^2-4x-4+1/2x-1
Step-by-step explanation:
Hope this helps, and sorry if it's wrong.
answer these problems please
9 x 1/8
10 x 1/8
9 1/2 x 1/8
12 x 1/8
8 1/2 x 1/8
I will give brainliest and 30 points, please no links!
Answer:
See below
Step-by-step explanation:
9 x 1/8 = 1.125
10 x 1/8 = 1.25
9 1/2 x 1/8 = 1.1875
12 x 1/8 = 1.5
8 1/2 x 1/8 = 0.5
For detailed, step-by-step explanations you can visit my fiverr account: kesja_
I provide detailed explanations for math questions for as little as $1!
Answer:
9 x 1/8 = 9/8
10 x 1/8 = 10/8 ≈ 5/4
9 1/2 x 1/8 = 19/16
12 x 1/8 = 12/8 ≈ 3/2
8 1/2 x 1/8 = 17/16
you can either turn them to decimals by dividing through or you leave them in Improper fractions or mixed fractions
Please answer the following 2 images correctly and don't answer if you don't know
Answer:
A) Not congurt
B) ASA
C)
D)
Step-by-step explanation:
Thats all i know
Answer:
Step-by-step explanation:
a) ASA congruent -> Two angles and included side are congruent
b) SSS congruent -- > three sides are congruent
c) Not congruent.
d) HL --> In a right angle triangle, base and hypotenuse are congruent.
23)
1)Q is the midpoint of PT & RS Given
2) PQ ≅ TQ Definition of midpoint
3) ∠PQR ≅ ∠TQS Vertical angles are congruent
4) RQ ≅ SQ Definition of midpoint
5) ΔPQR ≅ ΔTQS SAS congruent
can someone please help with this? it’s the last one i need for today thanks
Answer:
243x32=7776
546x12=6552
312x73=22776
Step-by-step explanation:
Answer:
243x32=7776
546x12=6552
312x73=22776
Step-by-step explanation:
I really hope this helped you out!