Answer:
y = 28.1
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Set Up Equation
"Difference" is subtraction
"y" is y
"8.1" is 8.1
"is" is equal
"20" is 20
y - 8.1 = 20
Step 2: Solve for y
Add 8.1 to both sides: y = 28.1A students cost for last semester at her community college was 2100 she spent 231 of that on books what percent of last semesters college costs was spent on books
Work Shown:
Divide the two amounts, smaller over bigger, to get
231/2100 = 0.11
Then move the decimal point over two spots to the right to get to 11%
Note how 11% of 2100 = 0.11*2100 = 231.
PLEASE PLEASE HELP I WILL GIVE BRAINALIST AND EXTRA POINTS
Simplify: x^2y-5 * x^y+8
What are the coordinates of D’ when the quadrilateral is reflected across the line y = x?
On a coordinate plane, quadrilateral A B C D has points (1, 2), (2, 4), (4, 3), (3, 1).
(1, 3)
(2, 4)
(3, 4)
(1, 1)
Answer:
(1, 3)
Step-by-step explanation:
If quadrilateral ABCD is reflected across the line y = x, then the x- and y-coordinates get reversed. Since the coordinates of point D are (3, 1), then the coordinates of point D' are (1, 3).
Answer:
its a its aaaa itsssssssssssssssssssssss aaaaaaaa sorry im just in a good mood
Step-by-step explanation:
Solve the system by substitution.
x=5y+3
2x+4y=-1
The solution is (__,__)
.
Answer:
((1)/(2),-(1)/(2))
Step-by-step explanation:
I don't understand
Answer:
b I'm sure byyyyyyyyyyyyy
need help with number 2 please
Answer:
x=3 , y=-1
Step-by-step explanation:
9x-13=6x-4
9x-6x=13-4
3x=9
x=3
9y+16=4y+11
9y-4y=11-16
5y=-5
y=-1
factor completely 4n^2-28n+49
Answer:
Then it would be 4n squared + 21
Step-by-step explanation:
Answer:
(2n - 7)^2
Step-by-step explanation:
both 4n^2 and 49 are perfect squares so take their square roots and get 2n and 7
5(4x+8). Answer this questions I already know the answer. Since winter break is over. Tell me what you got for Christmas. Also, Happy New Years
Answer:
20x + 40
Step-by-step explanation:
5(4x + 8)
20x + 40
Happy Holidays! For Christmas, I got something... what was it again? Hmm I think it was a pair of earbuds :D
Well on Christmas I just made chocolates and ate them-
As for New Years, Happy New Year! :D
Answer: I got a kitty headphones, and this games board and also a letter of my name :)
Step-by-step explanation:
The diagonals of a quadrilateral QRST intersect at P(2,3). QRST has vertices at Q(3,6) and R(-3,5). What must be the coordinates of S and T to ensure that QRST is a parallelogram?
Answer:
S (1 , 0)
T (7 , 1)
Step-by-step explanation:
If QRST is a parallelogram, P is the mid point of segment QS and segment RT.
Basic formula for mid-point of segment: ((x1+x2)/2 , (y1+y2)/2)
T (x₁ , y₁) S (x₂ , y₂) P (2 , 3) Q (3 , 6) R (-3 , 5)
2 = (x₁ + (-3))/2 x₁ = 7
3 = (y₁ + 5)/2 y₁ = 1
T (7 , 1)
2 = (x₂ + 3))/2 x₂ = 1
3 = (y₂ + 6)/2 y₂ = 0
S (1 , 0)
Melanie has a ribbon that is 18 inches long. She cut the ribbon into 3 equal pieces. Then she cut each of those pieces in half. How many small pieces of ribbon are there? how long is each pieces
Answer:
I guess there are 6 small pieces but dont know how long they are sry
Answer:
12 small piece of ribbon, each 3/2 inches long
Step-by-step explanation:
one 18" long ribbon divided into 3 equal pieces will produce three 6 inch ribbons
three 6" ribbons, each one cut in half (or divided by 2), equals 12 pieces
each one being 18/12 inches long; which reduces to 3/2
Given the relation y = −4x2 − 8, if the input is 2, what is the output? (4 points) 8 −8 −16 −24
Answer:
-4x^2 - 8......input (x) = 2
Step-by-step explanation:
-4(2^2) - 8 =
-4(4) - 8 =
-16 - 8 =
- 24 <==
i hope this helps you :)
There are 874 pieces of candy in the piñata. There are 23 children at the party, and they all agreed to split the candy equally. How many pieces of candy will each child receive?
Answer:
38 candies.
Step-by-step explanation:
Given the following data;
Total number of candy = 874
Total number of children = 23
Since we know that they are all sharing it equally, each child would get;
Each child = 874/23
Each child = 38 candies.
what is 60 /−3 and how do you solve
Answer:-20
Step-by-step explanation:
First divide 60 by 3 as you would regularly.
Your answer should be 20
Make sure to remember when multiplying with integers:
negative x negative = positive
positive x positive = positive
negative x positive = negative
positive x negative = negative
Make sure to remember when dividing with integers:
positive / positive = positive
negative / negative = positive
positive / negative = negative
negative / positive = negative
Because this question is a "positive / negative" your answer would be negative. Therefore your answer is -20
I hope this helps! :)
one number is three times another, and four times the smaller added to five times the greater amounts to 133; find them
Step-by-step explanation:
S=smaller number; L=larger number=3S
.
4S+5L=133
4S+5(3S)=133
4S+15S=133
19S=133
S=7 ANSWER 1: The smaller number is 7.
.
L=3S=3(7)=21 ANSWER 2: The larger number is 21.
.
CHECK:
4S+5L=133
4(7)+5(21)=133
28+105=133
133=133
fill the blanks please
Answer:
1) 4
2) 2
3) 5
4) 8
Step-by-step explanation:
All you have to do in this question is to substitute what they are telling you.
First blank:
They told us that m is 0 so if we plug that into the equation we can get s.
[tex]2m+4s=16\\2(0)+4s=16\\4s=16\\s=4[/tex]
In this one if m is 0, s will have to be 4.
Second blank:
They told us that s is 3 so if we plug in that into the equation we can get m.
[tex]2m+4s=16\\2m+4(3)=16\\2m+12=16\\2m=4\\m=2[/tex]
In this one if s is 3, m will have to be 2.
Third blank:
They told us that m is -2 so if we plug that into the equation we can get s.
[tex]2m+4s=16\\2(-2)+4s=16\\-4+4s=16\\4s=20\\s=5[/tex]
In this one if m is -2, s will be 5.
Fourth blank:
They told us that s is 0 so if we plug into the equation we can get m.
[tex]2m+4s=16\\2m+4(0)=16\\2m=16\\m=8[/tex]
In this one if s is 0, then m will be 8.
Can someone please simplify this expression?
8.6f + 9.2 - 7.2 - 7.2f
Answer:
Step-by-step explanation:
8.6f-7.2f+9.2-7.2=1.4f+2=2(0.7f+1)
(04.01 LC)
Which of the tables represents a function? (5 points)
Table A
Input Output
5 3
5 2
4 1
Table B
Input Output
1 2
3 2
5 3
Table C
Input Output
0 0
1 2
1 3
Table D
Input Output
4 2
4 3
4 4
9514 1404 393
Answer:
Table B
Step-by-step explanation:
If a table is to represent a function, it cannot have any repeated input values.
Table A repeats the input value 5.
Table C repeats the input value 1.
Table D repeats the input value 4.
Table B represents a function.
Víctor claims that when 1/6 is divided by a fraction the result will always be greater than 1/6 find an example of a fraction that supports victors claim and an example of a fraction that contradicts victors claim
Answer:
Step-by-step explanation:
Choose a random fraction less than 1. I will choose 1/4.
1/6 ÷ 1/4 = 1/6 × 4/1 = 4/6 = 2/3
2/3 > 1/6 so this example supports his claim.
Now chose a fraction greater than 1. I will choose 4/3
1/6 ÷ 4/3 = 1/6 * 3/4 = 3/24
3/24 < 1/6 so this contradicts his claim
what is the distance of KF. round to the nearest tenths
Answer:
its 9.2
Step-by-step explanation:
Well i counted 7 units (x-axis) and 6 units (y axis). 6 squared is 36 and 7 squared is 49. Add them together and get 85. Square root 85 and youll get 9.21954445729. Round it to the nearest tenths and get 9.2
1. Transform AABC by the formula (x, y) + (x - 2,y - 1) in order to find the
x-coordinate of A'.
Pls
Answer:
Left 2 and down 1
Step-by-step explanation:
Which point represents the quotient of StartFraction 4 + 3 I Over negative I EndFraction ? A B C D
Answer:
in my knowledge
option A...
Step-by-step explanation:
....
...
...
..
Answer:
B
Step-by-step explanation:
ALGEBRA NATION
HELP
Candice is deriving the quadratic formula.Her first few steps are
In her next step, Candice needs to complete the square to create
What expression should she add to both sides of the equation?
ax+ box +c=0
ax2 + bx= -C
x2+ bx/a = -c/a
Answer:
D
Picture proof, got 0 out of 3 RIP
2637737272828288 x 27277272782728282 =?
Answer:
21
Step-by-step explanation:
Sorry I had too
HELPPPPPP MEEEEE ASAP
Answer:
3 to the power of 7 is 2,187.
Step-by-step explanation:
3x3x3x3x3x3x3=2,187
what value is equivalent to 108-8x(5-2)-60
Answer:
-28 + -1 = -29
-14 + -2 = -16
-7 + -4 = -11
-4 + -7 = -11
-2 + -14 = -16
-1 + -28 = -29
1 + 28 = 29
2 + 14 = 16
4 + 7 = 11
7 + 4 = 11
14 + 2 = 16
28 + 1 = 29
Step-by-step explanation:
Answer:
6/7
Step-by-step explanation:
108 - 40x - 16x - 60
-40x -16x = -108 +60
-56x = -48
x = 6/7
What is the simplified expression for (screenshot)
A. 3/4
B. 4/3
C. 4²/3
D. 3³/4
Answer:
B. 4/3
Step-by-step explanation:
[tex] \frac{ {4}^{ - 3} . {3}^{4} . {4}^{2} }{ {3}^{5} . {4}^{ - 2} } \\ \\ = \frac{ {4}^{ - 3} . {4}^{2 + 2} }{ {3}^{5 - 4}} \\ \\ = \frac{ {4}^{ - 3} . {4}^{4} }{ {3}^{1}} \\ \\ = \frac{ {4}^{4 - 3} }{ {3}^{1}} \\ \\ = \frac{ {4}^{1} }{ {3}^{1}} \\ \\ = \frac{4}{3} [/tex]
Answer:
B. 4/3
Step-by-step explanation:
(4^-3 . 3^4 . 4^2)/(3^5 . 4^-2)
4^-3 . 4^2/ 4^-2 . 3^4/ 3^5
4^(-3+2-(-2)) . 3^(4-5)
4^1 . 3^-1
4 . 1/3 = 4/3
PLEASE HELP ASSP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
r = 8.2
Step-by-step explanation:
5r – 10 = –51
5r = –41
r = 8.2
Pre-Calc
Pleas hurry, I don't know what to do
Answer:
The slope of the line is 3.
Step-by-step explanation:
Given function;
x(t) = -t² + 5t
y(t) = 3t, when t = 2
[tex]\frac{dx}{dt} = -2t + 5[/tex]
[tex]\frac{dy}{dt} = 3[/tex]
[tex]\frac{dy}{dx}= \frac{dy}{dt} \ \times \ \frac{1}{\frac{dx}{dt} } \\\\\frac{dy}{dx}= 3 \ \times \frac{1}{-2t + 5} \\\\\frac{dy}{dx}= \frac{3}{-2t + 5}[/tex]
t = 2
[tex]Then, \ \frac{dy}{dx}= \frac{3}{-2(2) + 5} \\\\\frac{dy}{dx}= \frac{3}{-4 + 5} \\\\\frac{dy}{dx}= \frac{3}{1} \\\\\frac{dy}{dx}= 3[/tex]
Therefore, the slope of the line is 3.
Fill in the information in the table. The first is done for you
Answer:
≥ closed dot
< open dot
≤ less than or equal to closed dot
There are the missing blanks