I need this problem worked out. I already know the answer just not the work.
Answer
n = 30
Explanation
To solve for n, you have to isolate it by 'getting rid' of the 18, 2, and negative sign.
You 'remove' these numbers in backward PEMDAS.
So to 'remove' the 18, you subtract both sides by 18.
3-18 = -15
-n/2+18-18 = -n/2
So now you are left with -15 = -n/2.
To 'get rid' of the 2, you multiply each side by 2.
-15×2 = -30
-n/2×2 = -n
And now you have -30 = -n.
To 'get rid' of the negative sign, you multiply both sides by -1.
-30×-1 = 30
-n×-1 = n
So you get 30 = n or n = 30.
If you still have questions I'll answer them in the comments (under this question).
3. Write the equation of the line that passes through the point (-4,5) and has a slope of 1/4
Answer:
The equation of the line that passes through the point (-4,5) and has a slope of 1/4 is: [tex]y = \frac{1}{4}x+6[/tex]
Step-by-step explanation:
Given information is:
(x,y) = (-4,5)
Slope = m = 1/4
The slope-intercept form of equation of a line is given by the formula:
[tex]y = mx+b[/tex]
Here
m is the slope of the line and b is the y-intercept.
Putting the value of slope in the equation
[tex]y = \frac{1}{4}x+b[/tex]
Now to find the y-intercept we will put the point in the equation
[tex]5 = \frac{1}{4}(-4) + b\\5 = -1+b\\b = 5+1\\b = 6[/tex]
The equation of line is:
[tex]y = \frac{1}{4}x+6[/tex]
Hence,
The equation of the line that passes through the point (-4,5) and has a slope of 1/4 is: [tex]y = \frac{1}{4}x+6[/tex]
Which of the b-values satisfy the following inequality? 5 < b-3
a. b=8
b. b=9
c. b=10
Answer:
the values 9 and 10 satisfy the given inequality.
Step-by-step explanation:
Given inequality is:
[tex]5<b-3[/tex]
In order to find, which value of b satisfies the given inequality, we have to put the given values one by one in the inequality
Putting b = 8
[tex]5<8-3\\5 <5[/tex]
The inequality is not true for b=8.
Putting b=9
[tex]5<9-3\\5<6[/tex]
As the inequality is true for b=9, it satisfies the inequality.
Putting b=10
[tex]5<10-3\\5<7[/tex]
As the inequality is true for b=10, it satisfies the inequality.
Hence,
the values 9 and 10 satisfy the given inequality.
Answer:
The answer is b=9 and b=10
Step-by-step explanation:
A unit of gas costs 4.2 pence.
On average Ria uses 50.1 units of gas a week.
She pays for the gas she uses in 13 weeks.
Work out an estimate for the amount Ria pays.
Answer:
2735.46 pence or £27.35
Step-by-step explanation:
if she uses 50.1 units a week, in 13 weeks she will use 651.3 units. the cost for 651.3 units is 2735.46 pence. We can round this to £27.35.
The required cost of the gas as of the 13-week usage of gas is 2735.46 pence.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
A unit of gas costs 4.2 pence. On average Ria uses 50.1 units of gas a week. She pays for the gas she uses in 13 weeks.
The cost of gas for 13 weeks, is given as,
= 4.2 × 50.1 × 13
= 2735.46 pence
Thus, the required cost of the gas as of the 13-week usage of gas is 2735.46 pence.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ2
HELP PLS! IS THIS RIGHT? ONLY ANSWER IF YOU KNOW! THANKS!
Answer:
The ratio is 2:5
Step-by-step explanation:
Question says figure B to A.
Answer:
5:2
Step-by-step explanation:
It is on the screen already
A scientist is comparing the size of two one insect is 1.33 cm long and the other insect is 2.01 cm long which is the difference in size between the two and insect
Answer:
Step-by-step explanation:
if one insect is 2.01 and the other 1.33
2.01-1.33=0.68 cm difference between insects
Can somebody plz help answer these questions correctly (only if u know how) thanks :D
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST!! :DD
Answer:
1. 5:7 2. 9:4
Step-by-step explanation:
it was easy :)
heyy could you help me out with this question I have been stuck in this question??
Answer:
c
Step-by-step explanation:
Two of the angles in a triangle measure 51° and 25°. What must be the measure of the third angle?
Answer:
The measure of the third angle must be 104°
Step-by-step explanation:
Interior Angles of a Triangle
In any given triangle, the sum of its interior angles is 180°.
We are given the angles x=51° and y=25°. To find the third angle, z, we set up the equation:
x + y + z = 180
Solving for z:
z = 180 - x - y
Substituting:
z = 180 - 51 - 25
z = 104°
The measure of the third angle must be 104°
why does the have to be 20 characters
but can you help
Marcus gives eight cookies to his friend if this represents 40% of cookies in the package what is the total number of cookies in the package
Answer:20
Step-by-step explanation:
I done 8+8+4=20 because 8 was 40% so I added another 8 that made a 80% so then I cut the 8 and half because all I needed was
20% then which would be half of 40% and I ended up with 20 and that equally gave me a hundred percent
does anyone know this answer ?
Answer:
10z + 5
Step-by-step explanation:
A history teacher is writing a test worth 100 points. She uses multiple choice questions worth six points each and true false questions worth two points each. She wants to test to have three times as many multiple-choice questions as true false questions. M represent the number of multiple choice questions on a test and let T represent the number of true false questions. Which system of equations can be used to find how many of each type of question she should write?
Answer:
15 multiple choice 5 true false
Plzzzzz give me Brainliest!!!!!
Which of the following shapes are squares ? Please choose 2 correct answers !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!
Answer:
B,D
Step-by-step explanation:
Answer:
Hello again! Your answer would be B and D
Step-by-step explanation:
A square is a shape with 4 sides and all of them have to equal. Right away you can see that D is without needing to look at it. You might think that B is not because of its angle but if you turn your paper/computer to the side a bit you can there see that it is square. C and A are not because of their unequal sides. Yes, they do have four sides but they are non-equal.
A submarine is 100 feet below the ocean's surface. If it descends 248 feet, what is its' new depth?
PLLSSSS HURRY
Answer:
348 feet
Step-by-step explanation:
Answer:
-348
or 348 feet under the oceans surface
Step-by-step explanation:
since your already 100 feet below the surface, if you go down(descends) another 248 feet. You subtract 248 from -100, you get -348.
So your 348 feet below sea level.
hope this helps!
What is the image of point A(4,2) after the
composition of transformations defined by
R90 ºr y=x ?
1) (-4,2)
2) (4,-2)
3) (-4,-2)
4) (2,-4)
Answer:
d
Step-by-step explanation:
ok
Piscou possède 2021 pièces d'or. Il les répartit en piles contenant des nombres de pièces consécutifs.
s'il a plus de deux piles,combien la pile la plus haute contient -elle de piécès
Question in English:
Tom has 2,021 gold coins. He divides them into piles containing consecutive numbers of pieces. if it has more than two piles, how much is in the highest pile?
Plzzzzz give me Brainliest!!!!!
For every dollar Bennett spent on bagels, Dominic spent 25 cents less. Bennett
paid $12.50 more than Dominic. How much did they spend in the bagel store together?
(A) $37.50 (B) $50.00 (C) $87.50 (D) $90.00
(E) $92.50
Answer:
The answer is C:$87.50
Step-by-step explanation:
Ben - 1$
David - 0.75$
For each Bagel, Ben paid 0.25$ extra.
Then the total bagel Ben bought = 12.5/0.25 = 50 and the money spent = 50$
Then david spent = 3/4*50 = 37.5$
Total = 50+37.5 =$87.50
help me i’ll give brainliest
Answer: the first one
Step-by-step explanation:
Ok pls help me with this
Answer: x = 2
Step-by-step explanation:
The rule for reflecting over x = 2 is that y remains the same and you add how many units x = 2 is from the point.
x = 2 is has the coordinate of x = 2 and y = the y coordinate of the point.
A (-1, 1) Since the y coordinate of (-1, 1) is 1, x = 2 - (2, 1)
Add 3 units to 2, the x coordinate since -1, 1 is 3 units from 2, 1
2,1 --> 5, 1
I really didn't know how to explain but Im 100% sure Im right and I hoped this helped somehow.
Nikka has $20 to spend on school supplies. After buying 25 pencils, she has $16.25 left. How much did each pencil cost?
Answer: 15 cents
Step-by-step explanation:
20-16.25 tells us she spent 3.75 on pencils than divide 3.75 by 25 and you get .15 aka 15 cents
Can I get some help
Given:
The expression is
[tex]2x^4+2x^3-x^2-x[/tex]
The steps are given.
To find:
The mistake in her steps.
Solution:
We have,
[tex]2x^4+2x^3-x^2-x[/tex]
The correct steps are shown below.
Step 1: Taking out x as common factor.
[tex]=x(2x^3+2x^2-x-1)[/tex]
Step 2: Now, taking out 2x² as common factor from first two terms (first group of terms) and -1 form last two terms (second group of terms) in the parentheses.
[tex]=x(2x^2(x+1)-1(x+1))[/tex]
Step 3: Taking out (x+1) as common factor.
[tex]=x(2x^2-1)(x+1)[/tex]
She incorrectly factored -1 from the second group of terms.
Therefore, the correct option is B.
For these questions, give your answers to 1 decimal place.
a) Change 12 out of 43 to a percentage
b)
Change 43 out of 57 to a percentage
Answer:
the anwers is a
i hope this help you
A $320 scooter is on sale at 30% off. Find the sale price.
A. $96
B. $224
C. $279
D. $290
Answer:
B
Step-by-step explanation:
320×.30=96
320-96=224
Answer:
B. $224
Step-by-step explanation:
30% of 320 is 96
320-96=224
Divide and Simplify: 5/8 ÷ 8 3/10
Answer:
25/332 as a fraction
0.07530120 in decimal form
Step-by-step explanation:
Answer:
25/332
Step-by-step explanation:
keep change flip. keep 5/8. change divide to multiply. turn 83/10 into 10/83. then multiply. you get 50/664. simplify and you get 25/332
Pamela is 14 years older than Jiri. The sum of their ages is 78. What is Jiri's age?
Answer:
64
Step-by-step explanation:
78 - 14 = 64
Jiri is 64 years old!
Need a little help with this lol
Answer:
5 is 0 sky fifty drunk guru BFT JYYYGYYT huh
Step-by-step explanation:
no
=
Introduction to elapsed time
Try Again
Laura started cleaning at 4:47 PM and finished at 5:22 PM.
How long did it take her? Give your answer in minutes.
39 min
х
6
?
Answer:
35 minutesStep-by-step explanation:
4:47 to 4:50 it's 3 minutes
4:50 to 5:00 it's 10 minutes
5:00 to 5:22 it's 22 minutes
3 + 10 + 22 = 35
Add the following Linear Expressions.
(-6y - 3) + 5 (3+2.5y)
100 POINTS PLEASE HELP
What are the solutions of the last question on the attached doc
Answer:
i will try to answer in the comments under this, but what do you mean by solution? like the intercepts of what x and y equal?
Step-by-step explanation: